child seat

Abstract

The present application discloses a child car seat. The child car seat includes a seat body, a fixing assembly, and an indicator assembly. The indicator assembly is disposed on the seat body and includes an indicator member that is interlocked with the fixing assembly so that when the fixing assembly is unlocked, the indicator member is held in a first position, and when the fixing assembly is locked, the indicator member is held in a second position. The child car seat and indicator assembly according to the present application can conveniently inform a user of the status of the fixing assembly.

Description

[Technical Field]

[0001] The present application relates to the technical field of child seats, and more particularly to a child seat capable of indicating a state, and a child seat having a headrest height adjustment structure and a shoulder belt adjustment structure. [Background technology]

[0002] A child car seat generally includes a fixing assembly for securing the child car seat to a vehicle seat. The fixing assembly can be ISOFIX. The child car seat is installed in the vehicle seat via ISOFIX, which facilitates installation. Furthermore, to encourage users to properly install the ISOFIX, the child car seat may be provided with an instruction structure for locking and unlocking the ISOFIX. Consumers can learn the installation status of the ISOFIX through such an instruction structure. Existing child car seats typically have an instruction structure on the ISOFIX, but the position of such an instruction structure is close to the seating surface of the vehicle seat. When an object is placed on the vehicle seat, the instruction structure is blocked and cannot be directly observed. Therefore, the instruction structure of existing child car seats is inconvenient to use.

[0003] Child car seats typically use two methods to secure a child seated in them. That is, when a child car seat is used for a relatively small or tall child, the child is secured by a five-point seat belt attached to the child car seat. When a child car seat is used for a relatively large or tall child, the child is secured by the vehicle's seat belt. To accommodate children of different sizes and heights, child car seats typically have height-adjustable headrests. To facilitate adjustment of the shoulder belts, the height adjustment of the headrest is usually linked to the height adjustment of the shoulder belts. In this case, when the headrest is adjusted to a relatively high position, the shoulder belts of the five-point seat belt also rise, leading to misuse of the securing method, i.e., when a five-point seat belt is used for a relatively large or tall child, causing discomfort.

[0004] Existing child car seats generally include a seat body and a seat cushion covering the seat body. The seat body itself has poor breathability, and the seat cushion further reduces the breathability of the seat. Currently, some child car seats have vents in the seat body and the seat cushion is made of breathable fabric, thereby improving the breathability of the child car seat. However, the placement of the vents is irrational, which still leaves the problem of poor breathability.

[0005] Therefore, there is a need for further improvements in the arrangement of ventilation holes to improve breathability.

[0006] Child car seats usually use a five-point seat belt, that is, two shoulder belts, two lap belts, and a crotch belt are connected from each edge of the seat to a lap buckle. In this case, a buckle including a male buckle and a female buckle must be used. To facilitate buckle storage and improve aesthetics, the child car seat must be provided with a buckle storage structure.

[0007] The backrest portion of the child car seat can be arranged to be detachably connected to the seat portion, in which case a backrest locking mechanism needs to be provided so that the backrest portion can be conveniently and stably connected to or separated from the seat portion.

[0008] The seat part of a child car seat can be set so that the pitch angle, i.e., the angle between the plane of the seat part and the support surface (horizontal plane), can be adjusted. In this case, it is necessary to provide a simple and reliable seat angle adjustment structure. Summary of the Invention

[0009] The present application provides a child car seat including a seat body, a fixing assembly, and a support assembly. The support assembly is disposed on the seat body and includes a support member. The support member is interlocked with the fixing assembly so that when the fixing assembly is unlocked, the support member is held in a first position, and when the fixing assembly is locked, the support member is held in a second position.

[0010] The present application provides a child car seat including a seat body and an ISOFIX. The seat body includes a support assembly, the support assembly including a support member, and the support member is capable of operating in conjunction with the ISOFIX to support and unlock the ISOFIX.

[0011] The present application provides an indication assembly including an operating member, an interlocking member, and an indication member, wherein the operating member is operable to move the indication member from one of a first position and a second position to the other of the first position or the second position, and the operating member is interlocked with a securing assembly via the interlocking member, such that the operating member is operable to lock or unlock the securing assembly.

[0012] The present application provides a child car seat. The child car seat includes a headrest and a backrest. The headrest has a hole through which a seat belt passes. The headrest is slidably connected to the backrest and can be adjusted to different positions relative to the backrest. The backrest has a first turning portion disposed at a position other than the top of the backrest, and the seat belt bypasses the first turning portion and protrudes through the hole from the front side of the child car seat. If the hole is located lower than the first turning portion, the position of the headrest can be freely adjusted. If not, the seat belt passing through the hole restricts the headrest from being adjusted further upward relative to the backrest. [Brief explanation of the drawings]

[0013] Various objects, features, and advantages of the present application will become more apparent from the following detailed description of preferred embodiments thereof, taken in conjunction with the accompanying drawings, in which like reference numerals refer to the same or similar parts throughout. [Figure 1] 1 is a perspective view of a child car seat according to the present invention in a state where an operating member is not operated. [Figure 2] FIG. 2 is a partially enlarged view of FIG. [Figure 3] 1 is a perspective view of a child car seat in a state where an operating member of the present invention is activated. [Figure 4] FIG. 4 is a partially enlarged view of FIG. [Figure 5] 1 is a perspective view of a child car seat according to the present application, with a portion of the child car seat removed to show the internal structure, and shows a state in which the support member is in a position where the first support portion is exposed from the support window. [Figure 6] FIG. 6 is an enlarged view of a part of FIG. 5. [Figure 7] 1 is a perspective view of a child car seat according to the present application, with part of the child car seat removed to reveal the internal structure, showing the indicator member in a position where the second indicator portion is exposed from the indicator window. [Figure 8] FIG. 8 is an enlarged partial view of a part of FIG. 7. [Figure 9] 1 is a cross-sectional view of a fixing assembly of a child car seat according to the present invention, showing the fixing assembly in a locked position. [Figure 10] 1 is a cross-sectional view of a fastening assembly of a child car seat according to the present application, showing the fastening assembly in an unlocked position; [Figure 11] 1 is an exploded perspective view of a child car seat according to the present invention; [Figure 12] FIG. 1 is a perspective view of some components of the child car seat of the present application, showing two fixing assemblies fixed together by a link rod. [Figure 13] FIG. 2 is an exploded perspective view of some components of the child car seat of the present application. [Figure 14] FIG. 2 is a bottom perspective view of the child car seat of the present application. [Figure 15] 1 is a perspective view showing the internal structure of a child car seat according to the present invention with a portion of the base thereof removed. [Figure 16] FIG. 16 is an enlarged view of a part of FIG. [Figure 17] 1 is a top view of the base of the child car seat of the present application, with a portion of the base removed to show the internal structure. FIG. [Figure 18]FIG. 18 is an enlarged view of a part of FIG. 17. [Figure 19] 1 is a partial cross-sectional view of the base of the child car seat of the present application, showing the anchoring assembly in an extended position. [Figure 20] FIG. 20 is an enlarged view of a part of FIG. 19. [Figure 21] 1 is a partial cross-sectional view of the base of the child car seat of the present application, with the anchoring assembly in a retracted position. [Figure 22] 1 is a front perspective view of a child car seat according to the present application, with the headrest in a first position. [Figure 23] 23 shows another state of the child car seat shown in FIG. 22, with the headrest in a second position. [Figure 24] FIG. 24 shows a rear view of the child car seat shown in FIG. 23. [Figure 25] FIG. 23 is a rear perspective view of the child car seat shown in FIG. 22. [Figure 26] 23 shows a cross-sectional side view of the child car seat shown in FIG. 22. [Figure 27] 27 shows a cross-sectional side view of the headrest of the child car seat shown in FIG. 26 in another position. [Figure 28] FIG. 27 is a schematic view showing the appearance of the child car seat shown in FIG. 26 with a headrest seat cloth placed over the headrest. [Figure 29] FIG. 28 is a front perspective view of the child car seat shown in FIGS. 26 and 27, showing the use of the seat belt in schematic form. [Figure 30] FIG. 28 is a front perspective view of the child car seat shown in FIGS. 26 and 27, showing the use of the seat belt in schematic form. [Figure 31] 31 shows the rear of the child car seat shown in FIG. 30. [Figure 32] 1 shows a perspective view of a headrest of a child car seat according to the present application. [Figure 33] 33 shows another perspective view of the headrest shown in FIG. 32, with the connecting plate of the headrest removed. [Figure 34] 1 shows a perspective view of a child car seat according to the present application with the headrest removed. [Figure 35] 3 shows the operating principle of the headrest height adjustment structure of the present invention. [Figure 36] 3 shows the operating principle of the headrest height adjustment structure of the present invention. [Figure 37] 1 shows a child car seat according to the present application. [Figure 38] FIG. 2 is a perspective view of the child car seat according to the present invention, seen from a different angle. [Figure 39] 1 is an exploded perspective view of a backrest portion of a child car seat according to the present invention; [Figure 40] FIG. 2 is a front view of the headrest portion of the child car seat according to the present invention. [Figure 41] FIG. 2 is a perspective view of a headrest portion of the child car seat according to the present invention. [Figure 42] FIG. 4 is a perspective view showing another view of the headrest portion of the child car seat according to the present application. [Figure 43] 1 is a perspective view of a child car seat according to the present invention with the headrest portion removed; [Figure 44] FIG. 2 is a front view of the backrest of the child car seat according to the present invention. [Figure 45] 1 is a perspective view of a child car seat according to the present invention, seen from behind; [Figure 46] 1 is a front view of a child car seat according to the present invention with the headrest portion in the lowest position. [Figure 47] 1 is a front view of a child car seat according to the present invention with a headrest portion in an intermediate position. [Figure 48A] 10 is a front view of a child car seat according to the present invention, with the headrest portion in another intermediate position. FIG. [Figure 48B] FIG. 48B is an enlarged view of the circled portion of FIG. 48A. [Figure 49] 1 is a front view of a child car seat according to the present invention with the headrest portion in the highest position. [Figure 50] 1 is a perspective view of a child car seat showing a buckle storage structure according to the present application. [Figure 51]10 is a perspective view of the child car seat showing the buckle storage structure according to the present application, taken from another viewpoint. FIG. [Figure 52] 1 is a side cross-sectional view of a child car seat showing a backrest lock structure according to the present invention. [Figure 53] FIG. 53 is an enlarged partial view of the portion enclosed by the block in FIG. 52. [Figure 54] 1 is a perspective view of a backrest portion of a child car seat in which a backrest locking structure according to the present invention is shown. [Figure 55] FIG. 55 is an enlarged partial view of the portion enclosed by the block in FIG. 54. [Figure 56] 1 is a perspective view of a seat portion of a child car seat showing a locking groove according to the present application; [Figure 57] 1 is a side view of a child car seat in which a seat angle adjustment structure according to the present invention is shown. [Figure 58] 1 is a perspective view of a bottom view of a seat portion of a child car seat showing a support member in a deployed position according to the present application; FIG. [Figure 59] 1 is a perspective view of a bottom view of a seat portion of a child car seat showing a support member in a folded position according to the present application; FIG. [Figure 60] FIG. 2 is an exploded perspective view of the bottom view of the seat portion of the child car seat according to the present application. DETAILED DESCRIPTION OF THE INVENTION

[0014] To more clearly explain the overall concepts of the present application, the following detailed description is provided with reference to the accompanying drawings.

[0015] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application may be implemented in other embodiments different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0016] Furthermore, in the description of this application, terms such as "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "upper," "lower," "inner," "outer," "axial," "radial," "circumferential," etc. indicate directions or positional relationships based on directions or positional relationships shown in the drawings, and are intended only to make the description of this application easier and simpler, and do not indicate that the indicated devices or components must have a particular orientation or be configured or operate in a particular orientation. Therefore, these terms should not be construed as limitations of this application.

[0017] In this application, unless otherwise specified or limited, the terms "attached," "connected," "coupled," and "fixed" should be interpreted broadly and include, for example, fixed, detachable, or integral. They also include direct or indirect connection via an intermediate medium, and internal communication or interaction between two components. However, a direct connection means that two connected objects form an integrated part through a connection structure, rather than establishing a connection relationship through an additional structure. Those skilled in the art can understand the specific meaning of the above terms in this specification depending on the specific situation.

[0018] Unless otherwise specified or limited, a second feature "above" or "below" a first feature includes direct contact between the first feature and the second feature, or indirect contact between the first feature and the second feature via an intermediate medium. In the description herein, the terms "embodiment," "example," "particular example," or "some examples" mean that a particular feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example. The terms "some embodiments," "example," "particular example," or "some examples" mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, general terms such as "above" or "below" do not necessarily refer to the same embodiment or example. Furthermore, the described particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

[0019] FIG. 1 is a perspective view of the child car seat 1 of the present invention when the operating member 310 is not operated.

[0020] Referring to Fig. 1, a child car seat 1 may include a seat body 10. The seat body 10 is used to support a child (passenger) sitting in the child car seat 1, and forms the main structure of the child car seat 1. The seat body 10 may include a backrest 110 and a base 120. The backrest 110 is used to support the head and back of the passenger. The base 120 is used to support the buttocks and legs of the passenger.

[0021] FIG. 2 is a partially enlarged view of FIG.

[0022] 1 and 2, both sides of the base 120 protrude upward, which can support the hands of a passenger and prevent the passenger from sliding sideways off the base 120. An instruction window 121 may be provided at the front of one side of the base 120 (the portion away from the backrest 110). For example, the instruction window 121 is a hollow portion that exposes the inside of the child car seat 1. The instruction window 121 may be formed in a rectangular shape, but the present application is not limited thereto.

[0023] If desired, the indicator window 121 can be formed in a square, circle, triangle, or other shape.

[0024] Although two indicator windows 121 are shown in FIG. 1, it is understood that the present application may have only one indicator window 121 .

[0025] The indicator window 121 is generally configured to face the top or front surface of the child car seat 1. The position of the indicator window 121 is not limited to the embodiment of the present application, and the indicator window 121 may be placed in another position on the seat body 10 that is easy for the user to observe.

[0026] In one embodiment, as shown in FIG. 1, the base 120 is provided with two indication windows 121, which can be arranged symmetrically on both sides of the front surface of the base 120 of the child car seat 1.

[0027] The indication window 121 can be covered with a transparent member 124. The transparent member 124 enables the child car seat 1 to be a sealed enclosure, and the interior of the child car seat 1 can be observed through the indication window 121. The transparent member 124 can be made of glass, resin, or other transparent material.

[0028] When the securing assembly 20 (see FIG. 5 below) is unlocked, the indicator window 121 indicates one color (e.g., red), and when the securing assembly 20 is locked, the indicator window 121 indicates another color (e.g., green).

[0029] A through hole is formed in the side of the child car seat 1, and an operating member 310 (described later) is exposed through the through hole.

[0030] FIG. 3 is a perspective view of the child car seat 1 of the present invention with the operating member 310 in an actuated state, and FIG. 4 is a partially enlarged view of FIG.

[0031] The operating member 310 is actuated (eg, pressed by an operator's finger) to engage with the fixing assembly 20 (this process will be described later).

[0032] The operating member 310 can be operated in at least one of the upward, downward, forward and backward directions relative to the child car seat 1, but the present application is not limited to these.

[0033] FIG. 5 is a perspective view of the child car seat 1 of the present application, with part of the child car seat 1 removed to show the internal structure, and the indicator member 340 is positioned so that the first indicator portion 344 is exposed from the indicator window 121 (see FIG. 4). FIG. 6 is a partial enlarged view of FIG. 5. FIG. 7 is a perspective view of the child car seat 1 of the present application, with part of the child car seat 1 removed to show the internal structure, and the indicator member 340 is positioned so that the second indicator portion 345 is exposed from the indicator window 121 (see FIG. 4). FIG. 8 is a partial enlarged view of FIG. 7. The indicator member 340 is arranged at the front end of the seat main body 10, and the fixing assembly 20 is arranged at the rear end of the seat main body 10, and the fixing assembly 20 is configured to be slidable relative to the rear end of the seat main body 10.

[0034] Referring to FIG. 5 , the child car seat 1 may further include a fixing assembly 20 and an indicator assembly 30. The fixing assembly 20 may fix the child car seat 1 to a vehicle seat. The indicator assembly 30 may indicate the state of the fixing assembly 20. Specifically, the indicator assembly 30 may indicate whether the fixing assembly 20 is in a locked state where it is fixed to the vehicle seat, or in an unlocked state where it can be separated from the vehicle seat. The indicator assembly 30 is disposed on the inner wall of the base 120 of the child car seat 1, but the present application is not limited thereto. The positions and number of the indicator assemblies 30 correspond to the positions and number of the indicator windows 121. That is, if the child car seat 1 has two indicator windows 121, the child car seat 1 will have two corresponding indicator assemblies 30.

[0035] The support assembly 30 may include an operating member 310 and an interlocking member 330. The interlocking member 330 may connect other portions of the support assembly 30 to the securing assembly 20. The interlocking member 330 may be a flexible wire made of steel wire or other material. A first end of the interlocking member 330 is connected to the operating member 310, and a second end of the interlocking member 330 is connected to the securing assembly 20, such that the interlocking member 330 is actuated to unlock the securing assembly 20. The support member 340 is connected to the securing assembly 20 via the interlocking member 330, and the distance between the support member 340 and the first end is smaller than the distance between the support member 340 and the second end.

[0036] The child car seat 1 includes a left operating member, a left indicating member, a left fixing assembly, and a left interlocking member, which are arranged on the left side of the seat body 10, and a right operating member, a right indicating member, a right fixing assembly, and a right interlocking member. The left operating member, the left indicating member, and the left fixing assembly are each connected to the left interlocking member, and the right operating member, the right indicating member, and the right fixing assembly are each connected to the right interlocking member.

[0037] 6 and 8 , the support assembly 30 may include an operating member 310. The operating member 310 may be slidably disposed within the base 120 of the child car seat 1. For example, the operating member 310 may be disposed on the inner wall of the base 120, and may be slidable substantially in the vertical direction. The operating member 310 may include a guide portion 312. The guide portion 312 may be used to guide the sliding of the operating member 310. The sliding of the operating member 310 may be achieved by restraining the guide portion 312 of the operating member 310 in a slide groove 122 extending in the vertical direction, but the present application is not limited thereto. The slide groove 122 may be formed on the inner side of the base 120. A portion of the operating member 310 may protrude outward from the child car seat 1.

[0038] The operating member 310 may include a channel 311. The channel 311 may be formed in a cylindrical shape. The channel 311 extends along the movement direction of the operating member 310. For example, when the operating member 310 moves in the up and down direction of the child car seat 1, the channel 311 extends in the up and down direction. An opening 3111 may be formed in the channel 311. The opening 3111 may be a slit extending along the length direction of the channel 311 (i.e., the axial direction of the cylindrical shape).

[0039] The interlocking member 330 may have a first connector 331 disposed at an end of the interlocking member 330. Specifically, the first connector 331 is disposed within the channel 311 and is slidable within the channel 311. The slit allows the towing rope of the interlocking member 330 (such as the steel wire or a flexible wire made of another material) to pass through and easily attach to the first connector 331. When the fixing assembly 20 is in the unlocked state, the first connector 331 is disposed at the top of the channel 311 in a central position. When the fixing assembly 20 is in the locked state, the first connector 331 is located at the bottom of the channel 311. That is, when the operating member 310 is operated (moved upward), the first connector 331 is driven by the operating member 310, thereby unlocking the fixing assembly 20.

[0040] The support assembly 30 may include a first restoring member 320. The first restoring member 320 may be a coil spring, but the present application is not limited thereto. The first restoring member 320 is disposed between the operating member 310 and the housing of the base 120 and can apply a restoring force to the operating member 310 to return it to its initial position. The initial position corresponds to the locked state of the fixing assembly 20.

[0041] 1 and 5, one operating member 310 is provided on each of the left and right sides of the child car seat 1, but the present application is not limited to this.

[0042] In one embodiment, an operating member 310 on one side of the child car seat 1 operates to control the unlocking of the securing assembly 20 on that side, and an operating member 310 on the other side of the child car seat 1 operates to control the unlocking of the securing assembly 20 on the other side.

[0043] In another embodiment, the fixing assemblies 20 on both sides of the child seat 1 are linked to each other via an appropriate mechanism, and the simultaneous unlocking of the fixing assemblies 20 on both sides of the child seat 1 can be controlled by operating the operating member 310 on either side of the child seat 1.

[0044] The support assembly 30 may include a support member 340. The support member 340 may be rotatably fixed to the base 120 via a fixing member 360. The fixing member 360 may pass through a pivot portion 343 of the support member 340 (see FIG. 11 ). A spacer 370 may be provided between the pivot portion 343 and the fixing member 360. The pivot portion 343 corresponds to a pivot shaft of the support member 340.

[0045] The support member 340 may have a first arm 341 and a second arm 342. The first arm 341 and the second arm 342 each extend outward from a pivot shaft of the support member 340. The first arm 341 and the second arm 342 may be angled relative to each other. A drive portion 346 may be formed at the end of the first arm 341. The drive portion 346 may be formed as an elongated through hole. The length direction of the drive portion 346 may point toward the pivot shaft of the support member 340.

[0046] The interlocking member 330 may have a second connector 332. The second connector 332 may be disposed within the drive section 346. The second connector 332 may be located below the first connector 331 and may be disposed at a certain distance from the first connector 331. The second connector 332 is freely movable within the drive section 346 along the length of the drive section 346, such that linear movement of the second connector 332 causes pivotal movement of the support assembly 340, and vice versa. Specifically, a through-hole 3461 is disposed in the drive section 346. The interlocking member 330 may pass through the drive section 346 via the through-hole 3461.

[0047] The second arm 342 may be formed as a substantially fan-shaped sheet. One end of the second arm 342 may be bent to form a first indicator 344 and a second indicator 345. The first indicator 344 and the second indicator 345 may be disposed adjacent to each other. The first indicator 344 and the second indicator 345 may be perpendicular to the second arm 342, although the present application is not limited thereto. The first indicator 344 and the second indicator 345 may have the same dimensions. The dimensions of the indicator window 121 (see FIG. 1) are configured to be smaller than or equal to the dimensions of the first indicator 344 and the second indicator 345, so that the first indicator 344 and the second indicator 345 are not simultaneously exposed through the indicator window 121. The linear movement of the second connector 332 rotates the indicator member 340, so that the first indicator 344 indicates an unlocked state of the fixing assembly 20, and the second indicator 345 indicates a locked state of the fixing assembly 20 (details will be described later).

[0048] The first indicator 344 and the second indicator 345 may have different colors. For example, the surface of the first indicator 344 facing the indicator window 121 may be red, and the surface of the second indicator 345 facing the indicator window 121 may be green, but the present application is not limited thereto.

[0049] The support assembly 30 may include a second restoring member 350. The second restoring member 350 may be a torsion spring, although the present application is not limited thereto. The second restoring member 350 may be positioned by a spacer 370, which may be positioned by a fixing member 360. The second restoring member 350 is disposed between the pivot portion 343 of the support member 340 and the housing of the base 120 and may apply a restoring force to the support member 340. The restoring force constantly biases the support member 340 to a position where the first support portion 344 corresponds to the support window 121.

[0050] In one embodiment, the child car seat 1 has both a first resilient member 320 and a second resilient member 350 .

[0051] In one embodiment, the child car seat 1 has either a first resilient member 320 or a second resilient member 350.

[0052] In one embodiment, the child car seat 1 may not have the first and second resilient members 320 and 350 .

[0053] Figure 9 is a cross-sectional view of the fastening assembly 20 of the child car seat 1 of the present application when the fastening assembly 20 is in the locked position. Figure 10 is a cross-sectional view of the fastening assembly 20 of the child car seat 1 of the present application when the fastening assembly 20 is in the locked position.

[0054] 9 and 10, the fixing assembly 20 can fix the child car seat 1 to a corresponding interface on a vehicle seat. The fixing assembly 20 may be ISOFIX, but the present application is not limited thereto. The child car seat 1 may include two fixing assemblies 20 symmetrically arranged on both sides of the child car seat 1. The fixing assemblies 20 protrude rearward from the rear of the child car seat 1 (as shown in FIGS. 5 and 7).

[0055] 9 and 10, the fastening assembly 20 may include a housing 260 that forms the exterior of the fastening assembly 20. The left end of the housing 260 (the end of the fastening assembly 20 away from the seat main body 10) may form an opening 261.

[0056] The securing assembly 20 may include a hook 210. The hook 210 is pivotally connected to a position adjacent to an opening 261 in a housing 260 by a pivot shaft 213. The hook 210 has an anchor portion 211 formed thereon. When the securing assembly 20 is in the unlocked position (as shown in FIG. 10 ), the anchor portion 211 faces toward the opening 261 in the housing 260. When the securing assembly 20 is in the locked position (as shown in FIG. 9 ), the hook 210 rotates counterclockwise, with the anchor portion 211 facing downward. In this manner, the anchor portion 211 can receive and lock onto a corresponding component (e.g., a securing rod) disposed on the seat of the vehicle.

[0057] The hook 210 is biased to rotate from the locked position to the unlocked position by a return member 212 (see Figures 9 and 13), which can be a torsion spring.

[0058] The fixing assembly 20 may include a drive member 230. The drive member 230 may be disposed on the right side of the hook 210 (at a position farther from the opening 261 of the housing 260 than the hook 210). The drive member 230 is slidably disposed within the housing 260 of the fixing assembly 20. An end of the interlocking member 330 opposite the first connector 331 is formed as a third connector 333. The third connector 333 is connected to the drive member 230. The engagement rod 220 is connected to the left side of the drive member 230. A cavity may be formed in the drive member 230. The restoring member 240 may be disposed within the cavity. The restoring member 240 may be a coil spring, although the present application is not limited thereto. The restoring member 240 may be disposed between the drive member 230 and the limiting member 231 and configured to apply a thrust to the drive member 230 toward the hook 210. The limiting member 231 may be fixedly disposed in the fixing assembly 20.

[0059] 9 and 10, an abutment portion 214 is formed on the right side of the hook 210. When the fixing assembly 20 is in the locked position, the engagement rod 220 abuts against the abutment portion 214 of the hook 210 from below, preventing the hook 210 from rotating. Referring to FIG. 8, at this time, the driving member 230 is disposed near the hook 210, and the interlocking member 330 is tightened. The second connector 332 of the interlocking member 330 rotates the indicating member 340 against the force of the second restoring member 350, so that the second indicating portion 345 faces the indicating window 121, notifying the user that the fixing assembly 20 is in the locked position.

[0060] When the operating member 310 is actuated, the first connector 331 and the second connector 332 move upward together with the operating member 310 (from the position shown in FIG. 8 to the position shown in FIG. 6). The term "moving upward" here is merely an example, and it is understood that the operating member 310 may move in other directions. The upward movement of the first connector 331 is transmitted to the other end of the interlocking member 330, thereby retracting the drive member 230 from the state shown in FIG. 9 to the state shown in FIG. 10. When the drive member 230 is retracted by the interlocking member 330, the engagement rod 220 no longer abuts against the hook 210, and the hook 210 rotates to the unlocked position due to the action of the restoring member 212. Referring to FIG. 6, after the hook 210 rotates to the unlocked position, the hook 210 abuts against the drive member 230, positioning the drive member 230 at a position away from the hook 210. At this time, the interlocking member 330 is released, and the restoring force of the second restoring member 350 causes the indicating member 340 to change the indicating window 121 from a state indicating the second indicating member 345 to a state indicating the first indicating member 344, thereby informing the user that the fixing assembly 20 is in the unlocked position.

[0061] 9 and 10 , the fixing assembly 20 may include a bracket 250. The bracket 250 may be made of metal (e.g., steel), but the present application is not limited thereto. The bracket 250 may have sufficient strength to withstand an impact force acting on the child car seat 1 during a vehicle collision. The pivot shaft 213 is fixed to the bracket 250. That is, the hook 210 is rotatably connected to the bracket 250 via the pivot shaft 213. The limiting member 231 is connected and fixed to the bracket 250. A plurality of positioning holes 251 are formed in the bracket 250. The fixing assembly 20 is extendable and retractable relative to the seat main body 10. The plurality of positioning holes 251 extend along the length direction of the fixing assembly 20. This length direction is the extension or retraction direction of the fixing assembly 20. The plurality of positioning holes 251 may be formed in a circular, elliptical, or rectangular shape, but the present application is not limited thereto. The engagement rod 220 is slidably connected to the bracket 250 and fixed to the drive member 230 .

[0062] FIG. 11 is an exploded perspective view of the child car seat 1 of the present invention.

[0063] 11, the base 120 may include a base top cover 123. The base top cover 123 may be detachable from the base 120, allowing components within the base 120 to be easily installed.

[0064] Fig. 12 is a perspective view showing some of the components of the child car seat of the present application, in which two fixing assemblies are fixed by a link rod. Fig. 13 is an exploded perspective view showing some of the components of the child car seat of the present application.

[0065] The child car seat 1 may include two fixing assemblies 20. The two fixing assemblies 20 are connected via a link rod 290 and are configured to move synchronously. The link rod 290 is disposed within the base 120. The link rod 290 is fixed to brackets 250 (see FIGS. 9 and 10) of the two fixing assemblies 20, respectively. Specifically, the link rod 290 is fixed to the rear end (the right end as shown in FIG. 9) of the bracket 250. Holes corresponding to the positioning holes 251 are formed on the inner sides (facing each other) of the housings 260 of the two fixing assemblies 20. The bracket 250 is formed as a bent sheet.

[0066] FIG. 14 is a perspective bottom view of the child car seat 1 of the present invention.

[0067] The telescopic adjustment member 280 may be disposed at the bottom of the base 120. The telescopic adjustment member 280 is slidably connected to the base 120 to unlock the sliding of the locking fastening assembly 20. The telescopic adjustment member 280 can be actuated to release the fastening assembly 20 from the seat main body 10. That is, when the telescopic adjustment member 280 is actuated, the fastening assembly 20 can slide to extend outward from the base 120 or retract inward. This will be described later.

[0068] 15 is a perspective view of the base 120 of the child car seat 1 of the present application, with a portion of the base 120 removed to show the internal structure. FIG. 16 is a partially enlarged view of FIG.

[0069] The link rod 290 can pass through a portion of the base 120. The base 120 can include a fixed block 125 and a U-shaped member 126. A channel can be formed between the bottom of the fixed block 125 and the U-shaped member 126, allowing the fixed assembly 20 to slide relative to the base 120. When the fixed assembly 20 is extended to its maximum length relative to the seat body 10, the link rod 290 abuts against the U-shaped member 126 of the base 120, thereby limiting the maximum length that the fixed assembly 20 can be extended. The U-shaped member 126 is a U-shaped iron sheet, and the present application is not limited thereto.

[0070] 17 is a plan view of the base 120 of the child car seat 1 of the present application, with a portion of the base 120 removed to show the internal structure. FIG. 18 is a partially enlarged view of FIG.

[0071] The locking member 270 is slidably disposed within the base 120. When the fastening assembly 20 retracts and slides, the locking member 270 passes through one of the positioning holes 251, thereby locking the fastening assembly 20 to the seat main body 10. The telescopic adjustment member 280 is coupled to the locking member 270 (for example, by a flexible wire 281). The wire 281 may be a steel wire, but the present application is not limited thereto. When the telescopic adjustment member 280 is actuated, the locking member 270 is driven by the telescopic adjustment member 280 and moves away from the positioning hole 251, thereby unlocking the fastening assembly 20 from the seat main body 10. A restoring member 271 may be disposed between the base 120 and the locking member 270. The restoring member 271 may be a coil spring, but the present application is not limited thereto. The restoring member 271 applies a thrust to the locking member 270, causing the locking member 270 to be inserted into the positioning hole 251. Thus, when the telescoping adjustment member 280 is not actuated, the securing assembly 20 is free to slide a certain distance until the locking member 270 is actuated and inserted into one of the positioning holes 251 .

[0072] When the child car seat 1 has two fixing assemblies 20, there are two locking members 270, two restoring members 271, and two wires 281. The telescopic adjustment member 280 is simultaneously linked to the two locking members 270 via the two wires 281.

[0073] The elastic member 291 is disposed between the link rod 290 and the base 120 and applies a tensile force to the link rod 290. The elastic member 291 tends to cause the fastening assembly 20 to protrude outward from the seat body 10. The restoring member 271 may be a coil spring, but the present application is not limited thereto. The number of elastic members 291 may be one, two, or any other number.

[0074] Figure 19 is a cross-sectional view of the base 120 of the child car seat 1 of the present application when the fastening assembly 20 is in the extended position. Figure 20 is a partially enlarged view of Figure 19. Figure 21 is a cross-sectional view of the base 120 of the child car seat 1 of the present application when the fastening assembly 20 is in the retracted position.

[0075] The two side walls of the bracket 250 may be provided with the same number of positioning holes 251 at corresponding positions. The base 120 may include a front limiting rib 127 and a rear limiting rib 128. The front limiting rib 127 and the rear limiting rib 128 can collectively limit the travel distance of the link rod 290 and further limit the telescopic travel distance of the fixing assembly 20. The number of the front limiting ribs 127 and the rear limiting ribs 128 may each be multiple.

[0076] This application may include the following technical proposals:

[0077] The present application provides a child car seat including a seat body, a fixing assembly, and a support assembly, the support assembly being disposed on the seat body and including a support member, the support member interlocking with the fixing assembly, and when the fixing assembly is unlocked, the support member being held in a first position, and when the fixing assembly is locked, the support member being held in a second position.

[0078] Optionally, the support member is rotatably connected to the seat body.

[0079] Optionally, the child car seat includes an operating member and an interlocking member, the operating member being slidably disposed on the seat body and being actuatable to unlock the fixing assembly via the interlocking member.

[0080] Optionally, the operating member rotates the indicator assembly via a linkage member.

[0081] Optionally, the operating member includes a guide portion that guides the operating member to slide on the base of the child seat.

[0082] Optionally, the operating member includes a channel, the channel extending along a direction of movement of the operating member.

[0083] Optionally, the channel is formed with an opening, the opening being a slit extending along the length of the channel.

[0084] Optionally, the securement assembly includes a hook having an unlocked position corresponding to unlocking the securement assembly and a locked position corresponding to locking the securement assembly, the hook being configured to tend to move from the locked position to the unlocked position.

[0085] Optionally, the securing assembly includes a drive member that prevents the hook from moving to the unlocked position when the drive member is not actuated and allows the hook to move to the unlocked position when the drive member is actuated.

[0086] Optionally, the operating member actuates the drive member via a linkage member.

[0087] Optionally, the support member is pivotally connected to the seat body and includes a first arm and a second arm, the first arm being linked to the drive member via a linking member.

[0088] Optionally, the first arm has an end formed with a drive portion, the drive portion being formed as an elongated through hole, the length of the drive portion pointing toward the rotation axis of the support member.

[0089] Optionally, the seat body includes a backrest and a base, and a viewing window leading to the interior of the seat body is formed in the front of the base.

[0090] Optionally, the indicator includes a first indicator portion and a second indicator portion disposed at an end of the second arm, the first indicator portion being observable from outside the seat body when the indicator is held in the first position, and the second indicator portion being observable from outside the seat body when the indicator is held in the second position.

[0091] Optionally, the indicator member includes a first indicator portion and a second indicator portion, the first indicator portion being exposed through the indicator window when the indicator member is held in the first position, and the second indicator portion being exposed through the indicator window when the indicator member is held in the second position.

[0092] Optionally, the indicator window is formed as a through hole, and the indicator window is covered with a transparent member.

[0093] Optionally, the fixing assembly is ISOFIX.

[0094] Optionally, the linking member is a wire.

[0095] Optionally, the child safety seat includes a first restoring member that applies a thrust to the operating member tending to return the operating member to the inactivated position.

[0096] Optionally, the child car seat includes a second restoring member that applies a twisting force to the supporting member, causing the supporting member to move to a position where the first supporting portion is observable from outside the seat body.

[0097] Optionally, the child car seat includes two fastening assemblies, the two fastening assemblies being connected via a link rod and configured to move in synchronism with each other.

[0098] Optionally, the securing assembly includes a bracket, the hook being rotatably connected to the bracket.

[0099] Optionally, the fixing assembly is arranged to be telescopically mounted on the seat body, and a plurality of positioning holes are formed in the bracket, and the restricting member selectively passes through one of the positioning holes to fix the fixing assembly to the seat body.

[0100] Optionally, the fastening assembly is configured to tend to protrude the seat body.

[0101] Optionally, the child car seat includes a telescoping adjustment member that is actuated to disengage the restricting member from the plurality of positioning holes.

[0102] The present application further provides a child car seat including a seat body and an ISOFIX. The seat body includes a support assembly, and the support assembly includes a support member. The support member is configured to cooperate with the ISOFIX and to support locking and unlocking of the ISOFIX.

[0103] Optionally, the support member and the ISOFIX are connected to each other via a linkage member.

[0104] Optionally, when the ISOFIX is unlocked, the indicator member is held in a first position by the restoring member, and when the ISOFIX is locked, the ISOFIX drives the indicator member via the link, and the indicator member is held in a second position.

[0105] Optionally, the seat body includes a backrest and a base, and an indication window is formed on an upper surface of the base, the indication window being located at a side end of the base remote from the backrest.

[0106] Optionally, the indicator member includes a first indicator portion and a second indicator portion adjacent to each other, and the indicator member can be actuated to expose either the first indicator portion or the second indicator portion through the indicator window.

[0107] Optionally, the seat body comprises two indicating assemblies, which indicate locking and unlocking of the ISOFIX in different positions.

[0108] Optionally, the support member is rotatably connected within the seat body.

[0109] Optionally, the child seat includes an operating member disposed on the seat body and actuated to unlock the ISOFIX via the interlocking member.

[0110] Optionally, the ISOFIX is provided with a drive member and a hook, and the operating member is linked with the drive member via the linking member to move the drive member from a position that inhibits the hook to a position that disengages the hook.

[0111] Optionally, the child car seat includes a bracket and a restraining member, the bracket having a plurality of positioning holes formed therein, and the restraining member selectively passes through one of the positioning holes to fix the ISOFIX to the seat body.

[0112] Optionally, the ISOFIX is arranged to be stretchable on the seat main body and biases the seat main body to protrude.

[0113] The present application can further provide an indication assembly including an operating member, an interlocking member, and an indication member. The operating member can be actuated to move the operating member from one of a first position and a second position to the other of the first position and the second position, and the operating member interlocks with a fixing assembly via the interlocking member, and the operating member can be actuated to lock or unlock the fixing assembly.

[0114] Optionally, the support assembly is applied to the child car seat described above.

[0115] The child car seat 1 of the present application can solve the following technical problems: The position of the support structure of the fixing assembly of the child car seat in the prior art is close to the riding surface of the vehicle seat, so the support structure is easily blocked and cannot perform its function of warning the user.

[0116] The support member 340 of the child car seat 1 of the present application can be positioned on the left and / or right side of the front end of the seat, so the setting position of the support structure of the child car seat 1 is clear, easy to identify, and unlikely to be obstructed.

[0117] The present application provides a child car seat 1S with an adjustable headrest height. Referring to Figures 22 and 23, Figures 22 and 23 respectively show front perspective views of a child car seat 1S according to the present application with a headrest portion 100S in different positions.

[0118] As shown in FIG. 22, the child car seat 1S includes a headrest 100S and a backrest 200S. Specifically, the headrest 100S includes a main body 101S and a connecting plate 102S. The main body 101S has an upper edge 101aS and a lower edge 101bS, and the connecting plate 102S is connected to the lower edge 101bS of the main body 101S, thereby more stably connecting the headrest 100S to the backrest 200S. As an example, the connecting plate 102S is disposed in the center of the lower edge 101bS of the main body 101S, and more preferably, the center line M of the connecting plate 102S is configured to overlap with the midpoint of the lower edge 101bS of the main body 101S.

[0119] As can be seen from FIGS. 22 and 23 , the headrest portion 100S can be adjusted to different heights relative to the backrest portion 200S, making it suitable for children of different sizes or heights. When the headrest portion 100S is in a relatively low position, it can be used for children of relatively small builds or heights (e.g., children under the age of three). In this case, the child seated in the child car seat 1S is secured with a five-point seat belt, and the child car seat is then secured to the vehicle by ISOFIX and / or a top tether. For example, while an example of a "relatively low position" is shown in FIG. 22 , it is understood that the "relatively low position" is not limited to this position and includes other positions suitable for securing with a five-point seat belt. When the headrest portion 100S is adjusted to a relatively high position, it can be used for children of relatively large size or heights (e.g., children over the age of three). In this case, the child car seat and the child seated therein are secured with the vehicle's seat belt. For example, an example of a "relatively high position" is shown in Figure 23, but it is understood that a "relatively high position" is not limited to this position and also includes other positions suitable for securing the child car seat and child with the vehicle's seat belt instead of a five-point seat belt.

[0120] Furthermore, the headrest portion 100S is movable between a first position and a second position relative to the backrest portion 200S. For example, FIGS. 22 and 23 show one embodiment of the range of movement of the headrest portion 100S relative to the backrest portion 200S. FIG. 22 shows the headrest portion 100S in the lowest position (i.e., the first position) relative to the backrest portion 200S. When the headrest portion 100S is in the lowest position, the upper edge 101aS of the main body 101S of the headrest portion 100S does not exceed (i.e., is lower than or flush with) the upper edge 201aS of the backrest portion 200S. FIG. 23 shows the headrest portion 100S in the highest position (i.e., the second position) relative to the backrest portion 200S. When the headrest 100S is at the highest position, the lower edge 101bS of the main body 101S of the headrest 100S is located higher than the upper edge 201aS of the backrest 200S.

[0121] Here, for ease of explanation, when the headrest portion 100S moves from the first position to the second position, the movement range of the lower edge 101bS of the main body 101S is defined as the "height adjustment stroke" of the headrest portion 100S relative to the backrest portion 200S.

[0122] The "first position" and "lowest position" are not limited to the positions shown in Figure 22, and can be located at other positions according to the needs of the user. Similarly, the "second position" and "highest position" are not limited to the positions shown in Figure 23, and can be located at other positions according to the needs of the user.

[0123] Furthermore, the "relatively low position" suitable for securing with a five-point seat belt, the "relatively high position" suitable for securing with a vehicle seat belt, and important positions in between will be explained in detail later.

[0124] FIG. 24 shows a rear view of the child car seat 1S shown in FIG.

[0125] In one embodiment, the headrest portion 100S may be slidably connected to the backrest portion 200S so as to be adjustable to different positions relative to the backrest portion 200S. As shown in Fig. 24, the headrest portion 100S may be provided with a slide block 160S, and the backrest portion 200S may be provided with a corresponding slide groove 220S. The slide block 160S is coupled with the slide groove 220S and is movable along the slide groove 220S, thereby allowing the headrest portion 100S to slide relative to the backrest portion 200S.

[0126] For example, the slide block 160S may be disposed below the main body 101S of the headrest 100S. Specifically, the number of slide blocks 160S may be set to two, and the two slide blocks 160S may be disposed on both sides of the connecting plate 102S of the headrest 100S. For example, to more clearly explain the structure of the slide block 160S, refer to FIG. 32 (FIG. 32 shows a perspective view of the headrest 100S, and other structures in FIG. 32 will be described later). The headrest 100S may be provided with extensions 103S extending from the lower edge 101bS of the main body 101S and disposed on both sides of the connecting plate 102S, and the slide block 160S may be disposed on the extensions 103S. Here, the slide block 160S may be fixedly connected to the extensions 103S or may be integrally formed with the extensions 103S. In a preferred embodiment, the extensions 103S disposed on both sides of the connecting plate 102S are disposed symmetrically with respect to the center line M of the connecting plate 102S.

[0127] Correspondingly, the number of slide grooves 220S is set to two, and each of the two slide grooves 220S is cooperatively connected to one slide block 160S. In one embodiment, the two slide grooves 220S are arranged symmetrically on the backrest 200S and extend vertically. Here, the length of the slide grooves 220S (i.e., the length extending vertically on the backrest 200S) limits the range in which the slide block 160S can slide within the slide grooves 220S, i.e., the stroke by which the height of the headrest 100S is adjusted relative to the backrest 200S. In one embodiment, the length of the slide grooves 220S may be substantially equal to the distance the headrest 100S moves from the first position to the second position.

[0128] The present application is not limited to the above configuration. For example, the positions of the slide blocks 160S and the slide grooves 220S may be interchanged. That is, the slide grooves 220S may be disposed in the headrest portion 100S, and the slide blocks 160S may be disposed in the backrest portion 200S. The present application is not limited to the above number. For example, one or more slide blocks 160S and one or more slide grooves 220S may be disposed. Furthermore, other slide modes, such as a pin and groove or a slide bar and slideway, may be adopted as the slide mode between the headrest portion 100S and the backrest portion 200S. Furthermore, other modes that allow the headrest portion 100S and the backrest portion 200S to be adjusted relatively may also be adopted.

[0129] 25 to 27, Fig. 25 shows a rear perspective view of the child car seat 1S shown in Fig. 22, and Figs. 26 and 27 show cross-sectional side views of the headrest portion 100S of the child car seat 1S at different heights. Specifically, in Fig. 26, the headrest portion 100S is in a first position, which, as described above, is the lowest position of the headrest portion 100S relative to the backrest portion 200S. In Fig. 27, the headrest portion 100S is in a third position, which is an important position between the child car seat 1S of the present application using a five-point seat belt (i.e., a "relatively low position") and a position where the child car seat 1S of the present application is suitable for being secured by a vehicle seat belt (i.e., a "relatively high position").

[0130] First, as shown in Figures 26 and 27, the child car seat 1S of the present application is further provided with a five-point fastening seat belt 400S. The seat belt 400S indicated by the "dotted line" in the figures is a schematic diagram for explaining the arrangement of the seat belt 400S, and does not limit the shape or specific position of the seat belt 400S. With reference to Figures 25 to 27, the backrest 200S may be provided with a first direction changing portion 210S through which the seat belt 400S passes and which changes the extension direction of the seat belt 400S (i.e., bends the seat belt 400S).

[0131] In one embodiment, as shown in Figures 26 and 27, the seat belt 400S rises from the lower part of the child seat 1S (for example, the inside of the seat part 300S located below the backrest part 200S) inside the child seat 1S, changes its extension direction by bypassing the first direction change part 210S, and extends so as to protrude from the outside of the front side of the child seat 1S, i.e., from the front surface of the child seat 1S.

[0132] For example, as shown in FIG. 25, the first direction changing portion 210S may be fixed to the rear of the backrest portion 200S, or may be a component integrally arranged with the backrest portion 200S and may be arranged at a position other than the top of the backrest portion 200S. In one embodiment, the first direction changing portion 210S is arranged within the range of the height adjustment stroke of the headrest portion 100S relative to the backrest portion 200S. Preferably, the first direction changing portion 210S is arranged at an approximately midpoint of the height adjustment stroke, for example, at an approximately midpoint of the length of the slide groove 220S shown in FIG. 24.

[0133] Furthermore, as shown in Figures 26 and 27, when the headrest portion 100S is lower than the critical position, the position of the headrest portion 100S can be freely adjusted; otherwise, the seat belt 400S prevents the height of the headrest portion 100S from being adjusted relative to the backrest portion 200S. When the headrest portion 100S is lower than the critical position, the child car seat 1 is suitable for securing a child with a five-point seat belt placed thereon. On the other hand, when the headrest portion 100S is higher than the critical position or is flush with the critical position, the child car seat 1S is not suitable for securing a child with a five-point seat belt, but is suitable for securing a child with a vehicle seat belt.

[0134] In this application, the "critical position" is determined by the relative position of the lower edge 101bS of the main body 101S of the headrest 100S and the first direction-changing portion 210S. That is, when the lower edge 101bS is on the same plane as the first direction-changing portion 210S, the headrest 100S is in the critical position. That is, when the lower edge 101bS of the headrest 100S is lower than the first direction-changing portion 210S, the position of the headrest 100S can be freely adjusted. Otherwise, the seat belt 400S prevents the height adjustment of the headrest 100S relative to the backrest 200S. That is, the headrest 100S is restricted by the seat belt 400S and cannot be adjusted further upward. Furthermore, when adjusting the headrest 100S from the position shown in FIG. 26 to the position shown in FIG. 27, the shoulder belt portion of the seat belt 400S exposed from the front side of the child car seat 1S becomes longer. This allows children with slightly larger builds and heights (who can still be secured with a five-point seat belt) to use child seats.

[0135] As a specific example, the distance from the first direction changing portion 210S to the seat surface (for example, the riding surface of the seat portion 300S) can be 370 mm to 430 mm. Preferably, the distance between the first direction changing portion 210S and the seat surface is 400 mm, which is the distance between the lower edge 101bS of the main body 101S of the headrest portion 100S and the seat surface when the headrest portion 100S is in the critical position.

[0136] Preferably, the first direction changing portion 210S may be provided on a rod member arranged horizontally at the rear of the backrest portion 200S, as shown in Fig. 25. However, the first direction changing portion 210S of the present application is not limited to the above structure, and may also be provided as a pin, a protrusion, a curved surface, or the like.

[0137] In one embodiment, the child car seat 1S may further include a second direction change portion 310S. As shown in Figures 25 to 27, the second direction change portion 310S may be disposed at the rear of the seat portion 300S of the child car seat 1S. By providing the second direction change portion 310S, the seat belt 400S may bypass the first direction change portion 210S and the second direction change portion 310S in turn, thereby improving the connection strength of the seat belt 400S.

[0138] Preferably, the second direction changer 310S can be arranged on a rod member that is horizontally disposed at the rear of the seat 300S, as shown in Fig. 25. However, the second direction changer 310S of the present application is not limited to the above structure, and can be arranged as a pin, a protrusion, a curved surface, or the like.

[0139] Furthermore, referring to Figs. 28 to 31, Fig. 28 is a schematic view of the appearance of the headrest portion 100S of the child car seat 1S shown in Fig. 26, covered with a headrest seat cloth. Figs. 29 and 30 are front perspective views of the child car seat 1S shown in Figs. 26 and 27, and also show a schematic arrangement of the seat belt 400S. Fig. 31 shows a rear view of the child car seat 1S shown in Fig. 30. In Figs. 29 and 30, a portion of the seat belt 400S is shown schematically in a "shaded" form, and the outline of the headrest seat cloth 110S is shown schematically in a "dotted line." The illustrated structures are for convenience of explanation and do not limit the shape, structure, and arrangement of the seat belt 400S and headrest seat cloth 110S of the present application.

[0140] As shown in FIG. 29, the headrest portion 100S is provided with a first groove 1021S through which the seat belt 400S passes. For ease of understanding, reference may be made to FIG. 32 (i.e., a perspective view of the headrest portion 100S) described later for the first groove 1021S of the headrest portion 100S. As shown in FIGS. 29 and 32, the first groove 1021S may be disposed in the connecting plate 102S and formed to penetrate the connecting plate 102S from the front surface to the rear surface. For example, the first groove 1021S may be formed to extend from an end of the connecting plate 102S closer to the main body 101S (i.e., a lower edge 101bS of the main body 101S) by a length shorter than the length of the connecting plate 102S. In one embodiment, two first grooves 1021S are formed in the connecting plate 102S, and the two first grooves 1021S are arranged symmetrically with respect to the center line M of the connecting plate 102S. Of course, the present application is not limited thereto, and the first grooves 1021S may be arranged in other numbers or have other shapes or structures.

[0141] As shown in Fig. 30, the backrest portion 200S may be provided with a second groove 241S through which the seat belt 400S passes. For ease of understanding, reference may be made to Fig. 34 (i.e., a perspective view of the backrest portion 200S) described later for the second groove 241S of the backrest portion 200S. Referring to Figs. 30 and 34, the second groove 241S is disposed on the back plate 240S of the backrest portion 200S and configured to generally correspond to the first groove 1021S in the lateral direction (i.e., the left-right direction) of the child car seat 1S. As a result, when the headrest portion 100S is adjusted in height (i.e., the vertical direction) relative to the backrest portion 200S, at least a portion of the first groove 1021S always communicates with at least a portion of the second groove 241S, allowing the seat belt 400S to pass through. In an embodiment in which two first grooves 1021S are arranged in the connecting plate 102S, two second grooves 241S may be arranged corresponding to the backrest portion 200S. Of course, the present application is not limited to this, and the second grooves 241S may be arranged in other numbers or have other shapes or structures.

[0142] The headrest portion 100S is configured so that at least a portion of the first groove 1021S overlaps with the second groove 241S when the headrest portion 100S slides relative to the backrest portion 200S within the range of the height adjustment stroke of the headrest portion 100S.

[0143] In one embodiment, as shown in FIG. 28, the headrest portion 100S is provided with a first groove 111S through which the seat belt 400S passes. For example, after the seat belt 400S extends from inside the child car seat 1S, it passes through the first groove 111S and is adjusted in accordance with changes in the relative positions of the headrest portion 100S and the backrest portion 200S. More specifically, as shown in FIGS. 28 to 30, a headrest seating cloth 110S is sleeved onto the headrest portion 100S and fixedly connected to the headrest portion 100S. The first groove 111S is formed in the headrest seating cloth 110S at a position corresponding to the lower edge 101bS of the main body 101S. Here, the first groove 111S is generally flush with the upper edge of the first groove 1021S and is configured to always communicate with the second groove 241S when the headrest portion 100S is adjusted. As a result, the seat belt 400S extends from the rear of the child car seat 1S to the outside of the front surface of the child car seat 1S. For example, as shown in Figures 26 to 30, the seat belt 400S can reach the outside of the front surface of the child car seat 1S by sequentially bypassing the second direction change portion 310S and the first direction change portion 210S and passing through the first groove 111S.

[0144] In one embodiment, the above-mentioned "critical position" may be determined based on the relative positions of the first groove 111S and the first direction change portion 210S. Specifically, as shown in FIGS. 26 to 30, the position of the first groove 111S is configured so that when the first groove 111S is lower than the first direction change portion 210S (e.g., the position shown in FIG. 26), the seat belt 400S passing through the first groove 111S does not restrict the height adjustment of the headrest portion 100S. Until the first groove 111S is flush with the first direction change portion 210S (e.g., the position shown in FIG. 27, i.e., the critical position), the seat belt 400S passing through the first groove 111S restricts further upward adjustment of the headrest portion 100S.

[0145] That is, as shown in FIG. 26, when the lower edge 101bS of the headrest portion 100S is lower than the first direction-changing portion 210S, the height of the shoulder belt portion of the seat belt 400S is substantially the same as the height of the lower edge 101bS of the headrest portion 100S, which is suitable for relatively small children to use the five-point seat belt mode. As shown in FIG. 27, after the lower edge 101bS of the headrest portion 100S is flush with the first direction-changing portion 210S, continuing to adjust it upward will cause the shoulder belt portion of the seat belt 400S to pull on the headrest seat cloth 110S, making it difficult or impossible to adjust the headrest portion 100S, which is fixedly connected to the headrest seat cloth 110S, upward, and the user will be prompted to place the seat belt 400S under the headrest seat cloth 110S (i.e., the seat belt 400S is not used for five-point fixation and needs to be pulled out from the first groove 111S and received under the headrest seat cloth 110S), i.e., the user will be prompted to use the vehicle seat belt mode at this point.

[0146] Furthermore, in the above embodiment, the first groove 111S is arranged in the headrest seat cushion 110S, but the present application is not limited to this, and the first groove 111S can also be arranged in other positions of the headrest portion 100S, for example, in the lower edge 101bS of the main body 101S of the headrest portion 100S.

[0147] With the above configuration, when the headrest portion 100S is adjusted to a critical position, the user can be prompted to decide whether to switch the child restraint mode, thereby preventing misuse of the five-point seat belt for a relatively large child and further improving the user experience and safety. Furthermore, the disclosed structure is simple and easy to assemble, disassemble, and maintain.

[0148] Furthermore, the child car seat 1S may further be provided with a headrest height adjustment mechanism for adjusting and fixing the headrest portion 100S to different heights relative to the backrest portion 200S. This will be described in detail with reference to Figures 32 to 34. Figures 32 and 33 are perspective views of the headrest portion 100S, and a perspective view of the headrest portion 100S with the connecting plate 102S and the rear cover of the main body 101S removed (to show the internal structure), respectively. Figure 34 is a perspective view of the child car seat 1S with the headrest portion 100S removed.

[0149] In one embodiment, as shown in FIGS. 32 and 33 , the headrest height adjustment structure includes an operating member 120S, a driving member 130S, and a locking member 150S. The operating member 120S is disposed on the headrest portion 100S, for example, rotatably disposed on the upper edge of the headrest portion 100S. The driving member 130S is slidably connected to the headrest portion 100S, and one end of the driving member 130S is connected to the operating member 120S, for example, rotatably connected to the operating member 120S. The locking member 150S is disposed on the other end of the driving member 130S and is used to lock or unlock the relative position between the headrest portion 100S and the backrest portion 200S. In one embodiment, as shown in FIG. 32 , the locking member 150S can be rotatably connected to the headrest portion 100S, for example, to a connecting plate 102S of the headrest portion 100S.

[0150] In a preferred embodiment, the operating member 120S, the driving member 130S, and the locking member 150S may be arranged symmetrically with respect to the center line M of the connecting plate 102S. In a specific example, when two first grooves 1021S are symmetrically arranged on the connecting plate 102S, the driving member 130S and the locking member 150S may be arranged between the two first grooves 1021S.

[0151] 32 and 34, the locking member 150S cooperates with one of a plurality of adjustment grooves 230S on the backrest portion 200S to switch between a locked position and an unlocked position to lock or unlock the position of the headrest portion 100S relative to the backrest portion 200S. The "locked position" and "unlocked position" will be described in more detail below with reference to FIGS. 35 and 36.

[0152] As a specific example, as shown in FIG. 32, the locking member 150S may be a hook assembly. The hook assembly is rotatably connected to the headrest portion 100S, for example, via a connecting plate 102S, and engages with a corresponding adjustment groove 230S in the backrest portion 200S shown in FIG. 34 to lock the relative positions of the headrest portion 100S and the backrest portion 200S. As shown in FIG. 34, the adjustment grooves 230S are spaced apart along the direction in which the headrest portion 100S slides relative to the backrest portion 200S, allowing the headrest portion 100S to be positioned at different positions relative to the backrest portion 200S. Preferably, the hook assembly includes a pair of hooks that are symmetrically arranged about a center line M of the headrest portion 100S, and are configured to be synchronously rotatable relative to each other by operating or releasing the operating member 120S and to engage with the corresponding adjustment grooves 230S. In this embodiment, the hook has an L-shaped structure and can rotate outward relative to the center line M of the headrest portion 100S to engage and lock, or rotate outward to release the lock. However, the hook can have other structures, and the locking member 150S can also have or include other shapes, such as an extendable pin, or other shapes not limited to this application.

[0153] 33, the headrest height adjustment structure further includes a restoring spring 140S. The restoring spring 140S is disposed between the driving member 130S and the headrest portion 100S and is configured to drive the driving member 130S to resist operation of the operating member 120S, thereby causing the locking member 150S to always tend to return to or be held in the locked position. For example, the restoring spring 140S provides a force to move the driving member 130S downward, restoring or maintaining the hooks to rotate outward, thereby engaging with the corresponding adjustment grooves 230S (see FIG. 35 described below).

[0154] In one embodiment, as shown in Fig. 33, an abutment portion 131S is provided at the other end of the driving member 130S (i.e., the end corresponding to the locking member 150S, for example, the lower end), and is held in contact with the locking member 150S. As shown in Fig. 35, when the headrest unit 100S is locked, the driving unit 130S is held in a position where the abutment portion 131S abuts against the locking member 150S by the action of a restoring spring 140S. Specifically, as shown in Fig. 33, in an embodiment in which the locking member 150S is a pair of hooks, the abutment portion 131S is configured so that the dimensions gradually change (for example, gradually increase) toward its ends, and an accommodation space 132S that matches the shape of the abutment portion 131S is formed between the hooks. As a result, when the abutment portion 131S moves relative to the pair of hooks (for example, by applying or releasing a butting force to the pair of hooks), the pair of hooks are driven to rotate in opposite directions to each other, and the specific principle can be further explained with reference to Figures 35 and 36.

[0155] Therefore, the operating principle of the headrest height adjustment structure will be described in detail with specific examples with reference to FIGS.

[0156] 35 and 36, Fig. 35 shows a state in which the headrest portion 100S is locked to the backrest portion 200S, i.e., the locking member 150S is in the locked position, and Fig. 36 shows a state in which the headrest portion 100S is unlocked from the backrest portion 200S, i.e., the locking member 150S is in the unlocked position.

[0157] 35, when the headrest portion 100S is in the locked state, the drive portion 130S is held downward by the action of the restoring spring 140S. Here, the abutment portion 131S located at the lower end of the drive member 130S is held in a position where it abuts against a pair of hooks of the lock member 150S located on both sides of the abutment portion 131S. As a result, the pair of hooks are engaged with the corresponding adjustment grooves 230S located in the backrest portion 200S, i.e., the lock member 150S is in the locked position.

[0158] When the headrest 100S needs to be adjusted, as shown in FIG. 36, pressing the operating member 120S drives the driving member 130S to move upward against the elastic force of the restoring spring 140S. This causes the abutment 131S at the lower end of the driving member 130S to move upward, and the abutment 131S no longer abuts the hooks on either side. As a result, the pair of hooks rotate toward each other along the outer periphery of the abutment 131S and disengage from the corresponding adjustment grooves 230S until the abutment 131S is completely accommodated in the accommodation space 132S formed between the pair of hooks (i.e., the locking member 150S switches from the locked position to the unlocked position). At this time, the headrest 100S enters an unlocked state, and the relative positions of the headrest 100S and the backrest 200S can be adjusted.

[0159] When the headrest portion 100S is adjusted to the appropriate position, the operating member 120S is released and the drive member 130S moves downward under the action of the restoring spring 140S, which causes the locking member 150S to return from the unlocked position to the locked position, i.e., the position shown in Figure 35, and the headrest portion 100S returns to the locked state again.

[0160] A child car seat 1T according to the present invention will be described with reference to Figures 37 to 39. The child car seat 1T includes a headrest portion 100T, a backrest portion 200T, and a seat portion 300T.

[0161] The seat portion 300T is located at the bottom (vertical lower edge) of the child car seat 1T and extends substantially in the horizontal and vertical directions. The backrest portion 200T is connected to the rear end of the seat portion 300T in the vertical direction and extends substantially in the vertical direction. In one embodiment, the backrest portion 200T is detachably connected to the seat portion 300T, as will be described later. The headrest portion 100T is connected to the front side of the backrest portion 200T and extends substantially in the vertical direction. The headrest portion 100T is connected to the backrest portion 200T via connecting members (not shown), such as guide rails or slide blocks, so that the headrest portion 100T is movable in the vertical direction relative to the backrest portion 200T. The sliding connection between the headrest portion 100T and the backrest portion 200T can adopt conventional technology in the field, and detailed description thereof will be omitted.

[0162] The headrest portion 100T may include a buffer portion 110T and a plate portion 120T. The buffer portion 110T is located vertically above the headrest portion 100T and is made of or covered with a soft material to protect a child's head. In one embodiment, the material of the buffer portion 110T may be expanded polystyrene (EPS) or expanded polypropylene (EPP), or other materials. The plate portion 120T is located vertically below the headrest portion 100T and is a substantially flat plate extending vertically and horizontally.

[0163] Referring to FIG. 39, FIG. 39 is an exploded perspective view of the backrest portion of the child car seat according to the present application. The backrest portion 200T may include a front cover 210T and a rear cover 220T. The front cover 210T and the rear cover 220T may be attached to each other. The front cover 210T and the rear cover 220T are not tightly connected to each other. That is, there is a gap between the front cover 210T and the rear cover 220T. As shown in FIGS. 37 and 38, the plate portion 120T of the headrest portion 100T is configured to contact or abut the front side of the front cover 210T. The backrest portion 200T may further include at least one side wing 230T. The side wing 230T extends forward in the longitudinal direction from the lateral side of the front cover 210T to improve protection for the child. In this embodiment, the side wings 230T are provided on both the left and right sides of the backrest portion 200T. Furthermore, both sides of the rear cover 220T may also be configured to extend forward and cover the side wings 230T.

[0164] The headrest portion 100T will be described in detail with reference to Figures 40 to 42.

[0165] In this embodiment, the left and right sides of the buffer portion 110T extend forward, so that the entire buffer portion 110T has a U-shaped cross section in the lateral direction, thereby providing better safety protection for the child's head. In other embodiments, the buffer portion 110T may have other suitable shapes.

[0166] The plate portion 120T is provided with one or more first vent holes 130T. The first vent holes 130T penetrate the plate portion 120T in the longitudinal direction (the direction perpendicular to the vertical and horizontal directions). The multiple first vent holes 130T may be arranged in different patterns. In this embodiment, the multiple first vent holes 130T are arranged in the horizontal and vertical directions to form a rectangular array. In other embodiments, the first vent holes 130T may be arranged in other arrangements, such as a circular arrangement or a stepped arrangement.

[0167] In this embodiment, each first vent hole 130T is circular. In other embodiments, the first vent hole 130T may be other shapes, such as square, triangular, linear, or curved, and may have other dimensions. In one embodiment, the maximum diameter of each first vent hole 130T may be outside the range of 5 mm to 12 mm. That is, the maximum diameter of each first vent hole 130T may be less than 5 mm or greater than 12 mm to prevent a child's finger from being inserted into the first vent hole 130T.

[0168] In this embodiment, rectangular structural holes (e.g., for attaching slide rails or seat belts) are provided in the upper half of the plate portion 120T, so the first ventilation holes 130T are distributed mainly in the lower half of the plate portion 120T and are arranged in a first ventilation region 140 shown in dashed lines in FIGS. 40 to 42. In other embodiments, the first ventilation holes 130T may be arranged in various regions of the plate portion 120T. The first ventilation region 140T is arranged near the end of the plate portion 120T away from the buffer portion 110T.

[0169] In one embodiment, the total area of ​​the first ventilation holes 130T is 50% to 70% of the area of ​​the plate portion 120T, which allows the child car seat 1T to have both good ventilation and strength. Therefore, even when the overall strength of the child car seat 1T is taken into consideration, the first ventilation holes 130T can ensure sufficient ventilation.

[0170] The backrest portion 200T will be described in detail with reference to Figures 43 to 45.

[0171] In this embodiment, the backrest portion 200T is formed by assembling a front cover 210T and a rear cover 220T (see Figures 44 and 45). In other embodiments, the backrest portion 200T can be configured as a single piece having the properties of the front cover 210T and the rear cover 220T.

[0172] As shown in FIGS. 43 and 44, second ventilation holes 240T are provided in the front cover 210T, and each second ventilation hole 240T passes through the front cover 210T in the vertical direction.

[0173] In this embodiment, the plurality of second vent holes 240T may be arranged in different patterns. In this embodiment, the plurality of second vent holes 240T are arranged laterally and vertically to form a rectangular array. In other embodiments, the second vent holes 240T may be arranged in other ways, such as a circular arrangement or a stepped arrangement.

[0174] In this embodiment, each secondary vent hole 240T is circular. In other embodiments, the secondary vent hole 240T may be other shapes, such as square, triangular, linear, or curved, and may have other dimensions. The maximum diameter of each secondary vent hole 240T may be outside the range of 5 mm to 12 mm. That is, the maximum diameter of each secondary vent hole 240T may be less than 5 mm or greater than 12 mm to prevent a child's finger from being inserted into the secondary vent hole 240T. In this embodiment, the secondary vent holes 240T are primarily located in the lower half of the front cover 210T, in the second ventilation area 250T indicated by the dashed frame in FIG. 44 . In this manner, when the headrest portion 100T slides along the backrest portion 200T, the first ventilation area 140T and the second ventilation area 250T at least partially overlap, and the at least one first ventilation hole 130T is configured to communicate with the at least one second ventilation hole 240T. This will be described later. In other embodiments, the second ventilation hole 240T may be disposed in various areas of the front cover 210T as long as it can communicate with the first ventilation hole 130T. Specifically, the centers of the at least one first ventilation hole 130T and the at least one second ventilation hole 240T are aligned or slightly offset from each other in the vertical direction, and the at least one first ventilation hole 130T and the at least one second ventilation hole 240T are configured to fully or partially communicate with each other, preferably fully communicate with each other.

[0175] In one embodiment, the total area of ​​the second ventilation holes 240T may be 30% to 50% of the area of ​​the front cover 210T, so the second ventilation holes 240T provide good ventilation.

[0176] The side wings 230T are disposed laterally on at least one side of the front cover 210T and extend vertically and longitudinally. In this embodiment, the side wings 230T are provided on both sides of the front cover 210T, and the side wings 230T have substantially the same vertical dimension as the front cover 210T. As shown in FIG. 44, each side wing 230T is provided with at least one fourth ventilation hole 280T. In this embodiment, the fourth ventilation hole 280T is elongated in the vertical direction, and multiple fourth ventilation holes 280T are arranged vertically within the fourth ventilation area 290T to form a substantially rectangular pattern. In this embodiment, the total area of ​​the fourth ventilation holes 280T on each side wing 230T is 50% to 80% of the area of ​​the side wing 230T, which can take into account the structural strength and breathability of the side wing 230T. Therefore, the side wings 230T provide additional breathability.

[0177] As shown in FIG. 45, the rear cover 220T is attached to the rear of the front cover 210T in the vertical direction, and the rear cover 220T is provided with at least one third ventilation hole 260T.

[0178] In this embodiment, the plurality of third vent holes 260T may be arranged in different patterns. In this embodiment, the plurality of third vent holes 260T are arranged horizontally and vertically to form a rectangular array. In other embodiments, the third vent holes 260T may be arranged in other ways, such as a circular arrangement or a stepped arrangement.

[0179] In this embodiment, each third vent hole 260T is circular. In other embodiments, the third vent holes 260T may be other shapes, such as square, triangular, linear, curved, etc., and may have other dimensions. The maximum diameter of each third vent hole 260T may be outside the range of 5 mm to 12 mm. That is, the maximum diameter of each third vent hole 260T may be less than 5 mm or greater than 12 mm to prevent a child's finger from being inserted into the third vent hole 260T.

[0180] In this embodiment, the third ventilation holes 260T are mainly disposed in the lower and central portions of the rear cover 220T, and are disposed in a third ventilation area 270T indicated by a dashed frame in FIG. 45. When a gap exists between the front cover 210T and the rear cover 220T, gas flows through the gap between the front cover 210T and the rear cover 220T, and the gas that flows through the second ventilation holes 240T is discharged from the third ventilation holes 260T. The second ventilation area 250T does not necessarily correspond to the third ventilation area 270T. For example, referring to FIGS. 44 and 45, the third ventilation area 270T may be larger than the second ventilation area 250T.

[0181] As shown in FIG. 45, in this embodiment, the third ventilation region 270T may be divided into two peripheral regions 270AT arranged along the horizontal direction and an intermediate region 270BT located between the two peripheral regions 270AT. The position of the intermediate region 270BT corresponds to the position of the second ventilation region 250T of the front cover 210T, and overlaps with the second ventilation region 250T by at least 60% of its area. The position of the peripheral region 270AT is offset from the position of the second ventilation region 250T (i.e., they overlap partially or not at all). For example, the overlap area ratio between either of the peripheral regions 270AT and the second ventilation region 250T may be less than 50%.

[0182] In this embodiment, the distribution density of the third vent holes 260T in the intermediate region 270BT is substantially the same as the distribution density of the third vent holes 260T in any of the peripheral regions 270AT, but the present application is not limited thereto. The distribution density can be defined as the number of third vent holes 260T per unit area, or the ratio of the total area of ​​the third vent holes 260T to the unit area.

[0183] Note that the front cover 210T and the rear cover 220T are not in close contact with each other. That is, there is a gap between the front cover 210T and the rear cover 220T. Therefore, the first ventilation area 140T or the second ventilation area 250T does not need to overlap with the third ventilation area 270T. In some application environments, when the child car seat 1 is installed in a vehicle, the middle area 270BT of the rear cover 220T is in close contact with the vehicle seat, so that the airflow is mainly discharged through the third ventilation holes 260T arranged in the peripheral area 270AT.

[0184] Therefore, in one embodiment, the distribution density of the third ventilation holes 260T in the peripheral region 270AT can be greater than the distribution density of the third ventilation holes 260T in the intermediate region 270BT, thereby improving the overall breathability of the child seat 1T without excessively reducing the structural strength of the rear cover 220T.

[0185] 39 and 43, in this embodiment, the rear cover 220T has portions extending forward from both sides thereof and is configured to cover the side wings 230T. However, the rear cover 220T does not need to be provided with a vent corresponding to the fourth vent 280T. Gas flows between the side wings 230T and the rear cover 220T through the gap between the front cover 210T and the rear cover 220T, and the gas that flows through the fourth vent 280T is discharged from the third vent 260T.

[0186] The relative movement between the headrest portion 100T and the backrest portion 200T will be described with reference to FIGS.

[0187] The headrest portion 100T (specifically, the plate portion 120T) can slide along a certain path relative to the back. In this application, the path is a vertical path, i.e., a substantially vertical straight line. Fig. 46 shows the headrest portion 100T slid to its lowest position. Figs. 47 and 48A show the headrest portion 100T slid to different intermediate positions. Fig. 49 shows the headrest portion 100T slid to its highest position.

[0188] The plate portion 120T can be held at at least one position within the slide path. For example, the positions shown in Figures 46 to 49 correspond to different positions. The plate portion 120T can be held at a desired position by techniques well known to those skilled in the art, and detailed descriptions thereof will be omitted here.

[0189] In the embodiment of the present application, when the plate portion 120T is positioned so that the first ventilation region 140T and the second ventilation region 250T overlap each other, the overlapping area between the multiple first ventilation holes 130T and the multiple second ventilation holes 240T is at least 20%, preferably 20% to 50%, of the area of ​​the plate portion 120T. That is, when the plate portion 120T is in any position other than the highest position, at least one first ventilation hole 130T communicates with at least one second ventilation hole 240T. For example, in the position shown in FIG. 46 , the multiple first ventilation holes 130T communicate with the lower second ventilation holes 240T among the second ventilation holes 240T. For example, in the position shown in Figures 47 and 48A, the plurality of first ventilation holes 130T communicate with the second ventilation holes 240T that are located at intermediate positions among the plurality of second ventilation holes 240T. Referring to FIG. 48B, it can be seen that first vent area 140T and second vent area 250T have substantially the same width (lateral dimension).

[0190] In this embodiment, the vertical distance H1 between adjacent first vent holes 130T can be equal to or less than the vertical distance H2 between adjacent second vent holes 240T. The lateral distance D1 between adjacent first vent holes 130T can be equal to or less than the lateral distance D2 between adjacent second vent holes 240T. In this manner, when the headrest portion 100T (or the plate portion 120T) stops at any position and the first ventilation area 140T at least partially overlaps with the second ventilation area 250T, as many first vent holes 130T as possible can communicate with the second vent holes 240T. Therefore, gas in front of the headrest portion 100T flows directly to the rear of the front cover 210T through the first vent holes 130T and the second vent holes 240T, forming an improved exhaust system. In this embodiment, the maximum diameter of the second vent hole 240T is equal to or greater than the maximum diameter of the first vent hole 130T. Preferably, the maximum diameter of the second vent hole 240T is greater than the maximum diameter of the first vent hole 130T, thereby reducing gas flow resistance and allowing gas in front of the headrest portion 100T to smoothly pass through the first vent hole 130T and the second vent hole 240T and then flow rearward of the front cover 210T, thereby improving the gas transmission effect.

[0191] The first ventilation area 140T of the plate portion 120T of the headrest 100T is primarily used to support the occupant's lower back and back. Therefore, the first ventilation area 140T must have a certain degree of structural strength to prevent deformation of the plate portion 120T due to insufficient structural strength when adjusting the position of the headrest 100T. Therefore, in this embodiment, the maximum diameter of the first ventilation holes 130T arranged in the first ventilation area 140T is preferably 5 mm or less. The distribution density of the first ventilation holes 130T in the first ventilation area 140T can be greater than the distribution density of the second ventilation holes 240T in the second ventilation area 250T. This improves ventilation while maintaining the structural strength of the plate portion 120T.

[0192] The distribution density of the first vent holes 130T can be defined as the number of first vent holes 130T per unit area or the total area of ​​the first vent holes 130T per unit area within the first ventilation region 140T. Similarly, the distribution density of the second vent holes 240T can represent the number of second vent holes 240T per unit area or the total area of ​​the second vent holes 240T within the second ventilation region 250T.

[0193] 47, 48A, and 48B, in this embodiment, the bottom end of the plate portion 120T is located at two adjacent positions, at height positions P1 and P2, respectively. The vertical distance between the two height positions P1 and P2 is defined as a movement stroke L1 of the headrest portion 100T (or the plate portion 120T) at the two adjacent positions. In this embodiment, the movement stroke L1 of the plate portion 120T can be an integer multiple of the vertical distance H2 between adjacent second vent holes 240T. That is, the relationship between the movement stroke L1 and the vertical distance H2 between adjacent second vent holes 240T satisfies the following formula: L1 = N × H2, where N is a positive integer greater than or equal to 1. In this way, even if the position of the headrest portion 100T (or the plate portion 120T) moves, the multiple first vent holes 130T and the multiple second vent holes 240T do not shift relative to each other. Even when the headrest portion 100T is in a different position, a portion of the first ventilation holes 130T and a portion of the second ventilation holes 240T are aligned and communicate with each other, ensuring that a certain ventilation effect is maintained.

[0194] 48B and 45, in this embodiment, the vertical distance H1 between adjacent first vent holes 130T and the vertical distance H2 between adjacent second vent holes 240T are less than the vertical distance H3 between adjacent third vent holes 260T. Furthermore, the lateral distance D1 between adjacent first vent holes 130T and the lateral distance D2 between adjacent second vent holes 240T are both less than the lateral distance D3 of the third vent holes 260T. The distribution density of the third vent holes 260T in the third ventilation region 270T is less than the distribution density of the second vent holes 240T in the second ventilation region 250T and is less than the distribution density of the first vent holes 130T in the first ventilation region 140T.

[0195] Because there is a gap between the front cover 210T and the rear cover 220T of the backrest portion 200T, the object of the present application is achieved regardless of whether the first air vent 130T and the third air vent 260T are aligned in the front-to-back direction or whether the second air vent 240T and the third air vent 260T are aligned in the front-to-back direction.

[0196] In this embodiment, the vertical distance H3 between adjacent third vent holes 260T can be an integer multiple of the vertical distance H1 between adjacent first vent holes 130T (or the vertical distance H2 between adjacent second vent holes 240T), i.e., H3 = M × H1 (or H3 = M × H2), where M is a positive integer greater than or equal to 1.

[0197] Furthermore, the lateral distance D3 between adjacent third vent holes 260T can be an integer multiple of the lateral distance D1 between adjacent first vent holes 130T or the lateral distance D2 between adjacent second vent holes 240T. In this way, when the headrest portion 100T is in a different position, at least a portion of the first vent hole 130T or at least a portion of the second vent hole 240T can be aligned with a portion of the third vent hole 260T, which can provide a better ventilation effect.

[0198] 49, in this embodiment, the height (vertical dimension) of the first ventilation area 140T can be smaller than the height of the second ventilation area 250T. Furthermore, when the headrest portion 100T is adjusted to the highest position, the first ventilation area 140T and the second ventilation area 250T are completely offset in the vertical direction, and the first ventilation hole 130T does not communicate with the second ventilation hole 240T. Referring to FIG. 45, the first ventilation hole 130T or the second ventilation hole 240T can be directly communicated with the third ventilation hole 260T on the rear cover 220T to ensure ventilation, but the present application is not limited thereto. In other embodiments, when the headrest portion 100T is adjusted to the highest position, the first ventilation area 140T is configured to partially overlap the second ventilation area 250T, thereby allowing at least a portion of the first ventilation area 130T and a portion of the second ventilation area 240T to be aligned with each other.

[0199] A buckle storage structure 400T in a child car seat according to the present invention will be described with reference to FIGS.

[0200] The buckle storage structure 400T includes a first storage space 410T disposed in the seat portion 300T and a second storage space 420T disposed in the backrest portion 200T. One of the first storage space 410T and the second storage space 420T is used to store a male buckle, and the other is used to store a female buckle. The male buckle and the female buckle may take any appropriate form known to those skilled in the art and will not be described in detail here. In this embodiment, the first storage space 410T is used to store the female buckle, and the second storage space 420T is used to store the male buckle.

[0201] More specifically, the first storage space 410T is located in the horizontal center of the seat portion 300T and adjacent to the front end of the seat portion 300T in the vertical direction. The first storage space 410T is recessed downward from the upper surface of the seat portion 300T, and the edge shape of the first storage space 410T corresponds to the female buckle. For example, the first storage space 410T may have a substantially trapezoidal shape with a wide front end and a narrow rear end. Depending on the shape of the female buckle, the first storage space 410T may adopt other appropriate shapes.

[0202] The second storage space 420T is located at the horizontal center of the backrest 200T, adjacent to the vertical lower portion of the backrest 200T, and is recessed from the front to the rear of the backrest 200T. The contour of the second storage space 420T corresponds to the male buckle. For example, the second storage space 420T may have a general arrow shape with the head pointing downward. Depending on the shape of the male buckle, the second storage space 420T may have other suitable shapes.

[0203] In one embodiment, the buckle storage structure 400T may further include an attraction member 430T (see FIG. 51). The attraction member is disposed on the bottom wall of the second storage space 420T and can attract the male buckle and hold the male buckle within the second storage space 420T. For example, the attraction member 430T may be disposed at the lateral center of the second storage space 420T. In one embodiment, the attraction member 430T may be a magnetic attraction member that can attract a metallic male buckle.

[0204] In other embodiments, the shapes and functions of the first storage space 410T and the second storage space 420T can be interchanged. That is, the first storage space 410T can be used to store a male buckle and have a shape corresponding to the male buckle. The second storage space can be used to store a female buckle and have a shape corresponding to the female buckle.

[0205] In one embodiment, the lower end of the backrest 200T is detachably connected to the longitudinal rear end of the seat 300T. Therefore, the backrest 200T and the seat 300T are separable from each other. The male buckle and the female buckle are stored in the first storage space 410T of the seat 300T and the second storage space 420T of the backrest 200T, respectively, so that the male buckle and the female buckle can be stored separately from each other.

[0206] The child car seat backrest locking structure 500T of the present invention will be described with reference to FIGS.

[0207] The child car seat of the present application is provided with at least one backrest locking structure 500T, at least a portion of which is arranged in the backrest portion 200T, capable of connecting the backrest portion 200T to the seat portion 300T, and capable of being operated from outside the seat portion 300T to release the connection between the backrest portion 200T and the seat portion 300T.

[0208] As shown in FIG. 52, the backrest locking structure 500T includes a locking member 510T and a restoring member 520T. The locking member 510T is movable between a locked position and an unlocked position. FIGS. 52 and 53 show the locking member 510T in the locked position. The locking member 510T moves longitudinally rearward (to the right in FIGS. 52 and 53) from the position shown in FIGS. 52 and 53 to the unlocked position. When the locking member 510T is in the locked position, at least a portion of the locking member 510T protrudes from the backrest portion 200T and can be inserted into the locking groove 301T of the seat portion 300T to connect the backrest portion 200T to the seat portion 300T. When the locking member 510T is in the unlocked position, the locking member 510T retracts into the backrest portion 200T and disengages from the locking groove 301T of the seat portion 300T.

[0209] More specifically, the locking member 510T includes a first end 511T, a second end 512T, and an operating member 513T. The first end 511T faces the outside of the backrest 200T (the front side in the longitudinal direction, i.e., the left side in FIGS. 52 and 53), and when the locking member 510T is in the locked position, the first end 511T protrudes from the backrest 200T. The second end 512T faces opposite the first end 511T in the longitudinal direction and faces the inside of the backrest 200T (the rear side in the longitudinal direction, i.e., the right side in FIGS. 52 and 53), and the restoring member 520T abuts the second end 512T. The operating member 513T is disposed between the first end 511T and the second end 512T, and is operable from the outside of the backrest 200T. The operating member 513T is configured to be pressed with a finger to move the locking member 510T to the unlocked position. The operating member 513T will be described in detail with reference to Figures 54 and 55.

[0210] 52 and 53, the restoring member 520T is disposed between the locking member 510T and the backrest 200T and biases the locking member 510T toward the locked position. More specifically, the restoring member 520T is housed in a slide groove 201T provided in the backrest 200T. Both ends of the restoring member 520T abut against the second end 512T of the locking member 510T and the longitudinal rear end of the slide groove 201T, respectively, and bias the locking member 510T to the locked position.

[0211] The backrest locking structure 500T will be described with reference to FIGS.

[0212] The backrest portion 200T includes at least one joint 203T extending longitudinally from a lower vertical edge of the backrest portion 200T, and the backrest locking structure 500T is disposed at the joint 203T.

[0213] More specifically, the joint portion 203T is substantially rectangular, and a slide groove 201T is disposed therein (see also FIG. 53). The locking member 510T is slidably disposed within the slide groove 201T. In FIGS. 54 and 55, the locking member 510T is in the locked position, with its first end 511T protruding from the slide groove 201T. An opening 202T is provided on the upper surface of the joint portion 203T. A user contacts the operating member 513T of the locking member 510T through the opening 202T and moves the operating member 513T rearward in the vertical direction (upper right direction in FIGS. 54 and 55) to an unlocked position (not shown), thereby contracting the locking member 510T into the joint portion 203T.

[0214] As shown in FIG. 54, in this embodiment, the backrest portion 200T includes two joint portions 203T arranged side by side in the horizontal direction, and each joint portion 203T is provided with a backrest locking structure 500T for stably joining the backrest portion 200T to the seat portion 300T.

[0215] The structure of the seat portion 300T related to the backrest locking structure 500T will be described with reference to FIG.

[0216] The seat portion 300T includes at least one connecting groove 302T disposed at the rear end in the longitudinal direction of the seat portion 300T. The shape, number, and position of the connecting groove 302T generally correspond to the shape, number, and position of the connecting portion 203T of the backrest portion 200T (see FIGS. 54 and 55). For example, if the connecting portion 203T is substantially rectangular, the connecting groove 302T will also be substantially rectangular. A locking groove 301T is formed in the front wall of the connecting groove 302T, and the backrest portion 200T can be connected to the seat portion 300T by inserting a locking member 510T into the locking groove 301T.

[0217] In this embodiment, the backrest portion 200T is joined to the seat portion 300T in the vertical direction, i.e., the joining portion 203T is inserted vertically into the joining groove 302T. The locking member 510T is inserted vertically into the locking groove 301T, thereby preventing relative vertical movement between the backrest portion 200T and the seat portion 300T. In other embodiments, the locking member 510T may be inserted into the locking groove 301T in other directions, such as horizontally, as long as the relative vertical movement between the backrest portion 200T and the seat portion 300T is prevented.

[0218] A seat angle adjustment structure 600T for a child car seat according to the present invention will be described with reference to FIGS.

[0219] The seat angle adjustment structure 600T includes a support member 610T arranged on the bottom surface of the seat, which is movable relative to the seat portion 300T between an unfolded position (as shown in Figures 57 and 58) and a folded position (as shown in Figure 59) to adjust the angle of the seat portion 300T relative to the horizontal plane.

[0220] More specifically, the movement of the support member 610T between the unfolded position and the folded position is a tipping movement about a horizontal axis, and the unfolded position of the support member 610T is closer to the front in the longitudinal direction of the seat unit 300T than the folded position. In other embodiments, the movement of the support member 610T between the unfolded position and the folded position may be a movement about a vertical axis or an oblique axis, such as a sliding movement, a rotational movement, or a tipping movement.

[0221] 58 and 59, the support member 610T includes two adjustment portions 614T and a connection portion 615T. The two adjustment portions 614T are each rotatably connected to the seat portion 300T, and the connection portion 615T connects the two adjustment portions 614T laterally.

[0222] Each adjustment portion 614T includes at least one protruding surface 611T and at least one non-protruding surface 612T that face each other vertically. As shown in FIG. 58, when the support member 610T is in the unfolded position, the non-protruding surface 612T abuts against the bottom surface of the seat portion 300T, and the protruding surface 611T protrudes downward from the bottom surface of the seat portion 300T to lift the front end of the seat portion 300T. As shown in FIG. 59, when the support member 610T is in the folded position, the protruding surface 611T faces the seat portion 300T, the non-protruding surface 612T does not protrude from the bottom surface of the seat portion 300T, and the support member 610T is folded into the seat portion 300T.

[0223] 60, the vertical end of each adjustment portion 614T is a pivot end 613T, and each pivot end 613T is rotatably connected to a storage portion 303T of the seat portion 300T via a rotation shaft 620T. The storage portion 303T may be a recessed portion in which the bottom of the seat portion 300T is recessed upward.

[0224] When the support member 610T is in the unfolded position and the folded position, the angle of the seat unit 300T with respect to the horizontal plane varies from 0° to 30° (see FIG. 57). That is, when the support member 610T is in the unfolded position, the bottom surface of the seat unit 300T can rise from 0° to 30° with respect to the horizontal plane.

[0225] Those skilled in the art will be able to easily devise other embodiments of the present application by studying the specification and practicing the present application as described above. This application is intended to cover any modifications, uses, or adaptations of the present application that follow the general principles of the present application and encompass known technical means or techniques in the technical field not disclosed herein. Furthermore, the specification and the embodiments thereof are merely exemplary, and the scope and spirit of the present application are indicated by the claims of the present application.

[0226] Although the present application has been described with reference to examples of typical embodiments, the terms used are descriptive and exemplary, rather than limiting. Since the present application can be embodied in various forms without departing from the spirit and essence thereof, the above-described embodiments should not be limited to the details set forth above, but should be construed in the broadest sense within the scope defined by the claims, and all changes within the scope of the claims or their equivalents should be covered by the claims. [Explanation of symbols]

[0227] 1. Child seat 10 Seat body 110 Backrest 120 base 121 Indicator window 122 Slide groove 123 Base upper cover 124 Transparent parts 125 fixed block 126 U-shaped member 127 Front limiting rib 128 Rear limiting rib 20 Fixing Assembly 210 Hook 211 Anchor section 212 Restored parts 213 Pivot shaft 214 Contact part 220 Engagement rod 230 Driving member 231 Restriction member 240 Restored Materials 250 bracket 251 Positioning hole 260 Housing 261 Aperture 270 Locking member 271 Restored parts 280 Expansion adjustment member 281 Wire 290 Link Rod 291 Elastic Members 30 Assembly Instructions 310 Operating member 311 Channel 3111 Aperture 312 Guide part 320 First restored member 330 Interlocking members 331 First Connector 332 Second Connector 333 Third Connector 340 Supporting member 341 First Arm 342 Second Arm 343 Pivot part 344 First Instruction 345 Second Instruction 346 Drive Unit 3461 Penetration 350 Second restoration member 360 Fixing member 370 spacer 1S child seat 100S headrest 101S main unit 101aS upper edge 101bS lower edge 102S connection plate 1021S First Groove 103S extension part 110S Headrest cushion 111S First Groove 120S Operating member 130S driving member 131S Contact part 132S Storage Space 140S restoration spring 150S Locking Material 160S Slide Block 200S backrest 201aS upper edge 210S First turning section 220S slide groove 230S adjustment groove 240S Backplate 241S Second Groove 300S seat section 310S second turning section 400S seat belt 1T child seat 100T headrest section 110T buffer section 120T plate part 130T First Vent 140T First ventilation area H1 vertical distance D1 Lateral distance 200T backrest 201T slide groove 202T opening 203T joint 210T front cover 220T rear cover 230T side wing 240T Secondary Vent 250T Secondary Ventilation Area H2 vertical distance D2 Lateral distance 260T 3rd vent 270T Third Ventilation Zone 270AT Surrounding Area 270BT intermediate area H3 Vertical distance D3 Horizontal distance 280T 4th vent 290T Fourth Ventilation Zone 300T seat section 301T lock groove 302T joint groove 303T storage area 400T buckle storage structure 410T First storage space 420T Second storage space 430T Adsorption member 500T backrest locking mechanism 510T locking member 511T First End 512T Second End 513T operation unit 520T restoration parts 600T seat angle adjustment structure 610T support member 611T protruding surface 612T Non-protruding surface 613T pivot end 614T adjustment section 615T connection part 620T rotating shaft

Claims

1. A child car seat comprising a seat body, a fixing assembly, and a support assembly, The support assembly is disposed on the seat body and includes a support member. The support member is linked to the fixing assembly so that the support member is held in a first position when the fixing assembly is unlocked, and is held in a second position when the fixing assembly is locked. A child seat characterized by the above.

2. The support member is rotatably connected to the seat body.

2. The child car seat according to claim 1.

3. The child seat includes an operating member and an interlocking member, the operating member being slidably disposed on the seat body and operable to unlock the fixing assembly via the interlocking member.

3. A child car seat according to claim 1 or 2.

4. The operating member rotates the pointing member via the interlocking member.

4. The child car seat according to claim 3.

5. The support member and the fixing assembly are connected to each other via the linking member.

5. A child car seat according to claim 3 or 4.

6. The operating member has a channel extending along the moving direction of the operating member, and an opening is formed in the channel, and the opening is a slit extending along the length of the channel.

6. The child car seat according to claim 3, wherein the child car seat is a seat for a child.

7. The securing assembly includes a hook having an unlocked position corresponding to unlocking the securing assembly and a locked position corresponding to locking the securing assembly, the hook being configured to tend to move from the locked position to the unlocked position.

7. The child car seat according to claim 3, wherein the child car seat is a seat for a child.

8. The securing assembly includes a drive member that, when not actuated, prevents the hook from moving to an unlocked position, and that, when actuated, allows the hook to move to the unlocked position, and the operating member is configured to actuate the drive member via the linkage member.

8. A child car seat according to claim 7.

9. The indicating member is rotatably connected to the seat main body and has a first arm and a second arm, the first arm being linked to the drive member via the linking member, the indicating member having a first indicating portion and a second indicating portion disposed at an end of the second arm, and when the indicating member is held at the first position, the first indicating portion is observable from outside the seat main body, and when the indicating member is held at the second position, the second indicating portion is observable from outside the seat main body.

9. A child car seat according to claim 8.

10. A drive portion is formed at the end of the first arm, and the drive portion is formed as an elongated through hole, and the longitudinal direction of the drive portion points to the rotation axis of the support member.

10. The child car seat according to claim 9.

11. The seat body has a backrest and a base, and a guide window that leads to the interior of the seat body is formed in a front portion of the base, the guide window being formed as a through hole, and the fixing assembly is an ISOFIX connector.

11. The child car seat according to claim 1.

12. The interlocking member is a wire. The child car seat according to any one of claims 3 to 11.

13. The child car seat includes a first restoring member that constantly applies a thrust to the operating member and tends to return the operating member to its inoperative position. The child car seat according to any one of claims 3 to 12.

14. The child car seat includes a second restoring member that constantly applies a torsional force to the support member, tending to move the support member to a position where the first support portion can be observed from outside the seat body.

11. The child car seat according to claim 9 or 10.

15. The child seat includes two fixing assemblies connected via a link rod, the two fixing assemblies moving in synchronization, the fixing assemblies each including a bracket, the hook being rotatably connected to the bracket, the fixing assemblies being arranged on the seat body so as to be able to extend and retract, a plurality of positioning holes being formed in the bracket, and a restricting member selectively passing through one of the plurality of positioning holes to fix the fixing assemblies to the seat body. The child car seat according to any one of claims 7 to 14.

16. The fastening assembly is configured to tend to protrude the seat body.

16. A child car seat according to claim 15.

17. The child car seat includes an expansion and contraction adjustment member operable to disengage the restricting member from a plurality of positioning holes.

17. A child car seat according to claim 15 or 16.

18. The support member is located at a front end of the seat body, the fixing assembly is located at a rear end of the seat body, and the fixing assembly is configured to be slidable relative to the rear end of the seat body.

18. A child car seat according to claim 1.

19. The child seat includes an operating member and an interlocking member, The interlocking member is a wire, a first end of the interlocking member is connected to the operating member, and a second end of the interlocking member is connected to the fixing assembly, whereby the interlocking member operates to drive and unlock the fixing assembly, the support member and the fixing assembly are connected to each other via the interlocking member, and the distance between the support member and the first end is smaller than the distance between the support member and the second end.

19. A child car seat according to claim 18.

20. The child car seat includes a left operating member, a left supporting member, a left fixing assembly, and a left interlocking member arranged on the left side of the seat body, and a right operating member, a right supporting member, a right fixing assembly, and a right interlocking member arranged on the right side of the seat body, the left operating member, the left supporting member, and the left fixing assembly being respectively connected to the left interlocking member, and the right operating member, the right supporting member, and the right fixing assembly being respectively connected to the right interlocking member.

20. A child car seat according to claim 19.

21. A child car seat having a headrest and a backrest, The headrest portion is provided with a first groove through which a seat belt passes, the headrest portion is slidably connected to the backrest portion, whereby the headrest portion is adjustable to different positions relative to the backrest portion; The backrest portion has a first turning portion disposed on the backrest portion, and the seat belt bypasses the first turning portion and extends to the front side of the child car seat through the first groove. A child seat characterized by the above.

22. When the first groove is lower than the first turning portion, the seat belt passing through the first groove allows the position of the headrest portion to be adjusted, and when the first groove is not lower than the first turning portion, the seat belt passing through the first groove restricts the headrest portion from being adjusted further upward relative to the backrest portion.

22. The child car seat according to claim 21.

23. The headrest portion is movable between a first position and a second position relative to the backrest portion, and the first direction change portion is located within a range of a height adjustment stroke of the headrest portion relative to the backrest portion, and the height adjustment stroke is a range of movement of a lower edge of a main body of the headrest portion when the headrest portion moves from the first position to the second position.

23. A child car seat according to claim 21 or 22.

24. The headrest portion is configured such that, when the headrest portion is in a first position, a vertical height of a lower edge of the first groove is higher than that of the first direction change portion, and when the headrest portion is in a second position, a vertical height of the lower edge of the first groove is lower than that of the first direction change portion.

24. A child car seat according to claim 23.

25. The first groove is smaller than the distance between the first position and the second position.

25. A child car seat according to claim 23 or 24.

26. The backrest portion has a second groove through which the seat belt passes, and the first direction-changing portion overlaps with the second groove in the vertical direction. The child car seat according to any one of claims 23 to 25.

27. The headrest portion is configured such that at least a portion of the first groove overlaps with the second groove when the headrest portion slides relative to the backrest portion within the height adjustment stroke.

27. A child car seat according to claim 26.

28. The backrest portion has a buckle storage space for storing a male buckle, and the headrest portion shields at least a portion of the buckle storage space when the headrest portion is in a first position, and does not shield the buckle storage space when the headrest portion is in a second position. The child car seat according to any one of claims 23 to 27.

29. The buckle storage space is provided with a magnetic buckle for adsorbing the buckle.

29. A child car seat according to claim 28.

30. The first direction-changing portion is fixed to the rear of the backrest, and the distance from the first direction-changing portion to the seat surface of the child car seat is 370 mm to 430 mm.

30. The child car seat according to claim 21, wherein the child car seat is a seat for a child.

31. The child car seat further includes a second turning portion disposed at a rear portion of the seat portion of the child car seat, and the seat belt is configured to bypass the second turning portion and the first turning portion and pass through the first groove to reach the front side of the child car seat. The child car seat according to any one of claims 21 to 30.

32. The child car seat further includes a headrest height adjustment structure, the headrest height adjustment structure including an operating member, a driving member, and a locking member; The operating member is disposed on the headrest portion, the drive member is slidably connected to the headrest portion, and one end of the drive member is connected to the operation member; the locking member cooperates with one of a plurality of adjustment grooves in the backrest portion to switch between a locked position and an unlocked position, thereby locking or unlocking the position of the headrest portion relative to the backrest portion; The drive member can be moved by operating the operating member, and the lock member is driven so as to be switched between the locked position and the unlocked position. The child car seat according to any one of claims 21 to 31.

33. The operating member is rotatably disposed on an upper edge of the headrest portion, and an end of the driving member is rotatably connected to the operating member.

33. A child car seat according to claim 32.

34. The locking member is a hook assembly rotatably connected to the headrest portion, and when the locking member is in the locked position, the hook assembly engages with a corresponding adjustment groove, and the adjustment grooves are arranged at intervals along a direction in which the headrest portion slides relative to the backrest portion, thereby positioning the headrest portion at different positions relative to the backrest portion. The hook assembly includes a pair of hooks, which are arranged symmetrically with respect to a center line of the headrest portion and can rotate relatively synchronously by operating or releasing the operating member, and can engage or disengage with the corresponding adjustment groove.

34. A child car seat according to claim 32 or 33.

35. The headrest height adjustment structure further includes a restoring spring disposed between the drive member and the headrest, the restoring spring driving the drive member to resist operation of the operating member, whereby the locking member is configured to always tend to return to or be maintained in the locked position.

35. A child car seat according to claim 34.

36. The other end of the driving member is provided with a contact portion, When the headrest portion is locked, the driving member is configured so that the contact portion is held at a position where it contacts the locking member by the action of the restoring spring, the contact portion has a shape whose dimensions gradually change toward its end, the pair of hooks form a storage space that matches the shape of the contact portion, and the contact portion moves relative to the pair of hooks, so that the pair of hooks can be rotated toward or away from each other.

36. A child car seat according to claim 35.

37. A slide block is provided at the lower end of the headrest, and a corresponding slide groove is provided in the backrest. The slide block is slidably coupled to the slide groove, so that the headrest can slide along the slide groove relative to the backrest. A child car seat according to any one of claims 21 to 36.

38. the headrest portion includes a plate portion, the plate portion has a first ventilation area, the first ventilation area includes a first ventilation hole; the backrest portion includes a second ventilation area, the second ventilation area including a second ventilation hole; When the first ventilation area at least partially overlaps the second ventilation area, the first ventilation hole communicates with the second ventilation hole; the plate portion is slidable along a path relative to the backrest portion, and the plate portion is retainable at at least one position within the path; At least one of the first vent holes communicates with at least one of the second vent holes when the first vent area at least partially overlaps with the second vent area, and when the plate portion is at the position where the first vent area at least partially overlaps with the second vent area, the overlapping area of ​​the first vent hole and the second vent hole is at least 20% of the area of ​​the plate portion. A child car seat according to any one of claims 21 to 37.

39. the plate portion and the back portion both extend along a substantially lateral plane and a substantially vertical plane; The plate portion is located in front of the backrest portion in the longitudinal direction and slides vertically relative to the backrest portion, The first air vent and the second air vent are respectively opened in the plate portion and the backrest portion along the vertical direction.

39. A child car seat as claimed in claim 38.

40. a plurality of the first ventilation holes are arranged in the first ventilation region; a plurality of the second ventilation holes are disposed in the second ventilation region; the plurality of first vent holes are arranged along a horizontal direction and a vertical direction, the plurality of second vent holes are arranged along a horizontal direction and a vertical direction, The first vent area and the second vent area have substantially the same lateral dimension, and the vertical dimension of the first vent area is less than the height of the second vent area.

40. A child car seat according to claim 38 or 39.

41. The vertical distance (H1) between adjacent first vent holes is equal to or less than the vertical distance (H2) between adjacent second vent holes, The lateral distance (D1) between adjacent first vent holes is equal to or less than the lateral distance (D2) between adjacent second vent holes.

41. A child car seat according to claim 40.

42. The backrest portion includes a front cover and a rear cover, The second ventilation hole is provided in the front cover, The rear cover is attached to a longitudinal rear portion of the front cover, and at least one third air vent hole is provided in the rear cover, and at least one of the first air vent hole and the second air vent hole communicates with the third air vent hole.

42. The child car seat according to claim 38, wherein the child car seat is a seat for a child.

43. a total area of ​​the first vent holes is 50% to 70% of an area of ​​the plate portion; the total area of ​​the second ventilation holes is 30% to 50% of the area of ​​the front cover; the total area of ​​the third ventilation holes is 50% to 90% of the area of ​​the rear cover; At least one of the first vent holes, at least one of the second vent holes, and at least one of the third vent holes are circular.

43. A child car seat according to claim 42.

44. the backrest portion further includes at least one side wing; At least one side wing extends from a lateral side of the front cover toward the front in the longitudinal direction; Each of the side wings is provided with at least one fourth vent hole, and the total area of ​​the fourth vent holes in each of the side wings is 50% to 80% of the area of ​​the side wings; At least one of the fourth vent holes is elongated and extends longitudinally.

43. A child car seat according to claim 42.

45. The headrest portion has a buffer portion connected to the plate portion, the first ventilation area is close to an end of the plate portion that is far from the buffer portion, and a distribution density of the first ventilation holes in the first ventilation area is equal to or greater than a distribution density of the second ventilation holes in the second ventilation area. A child car seat according to any one of claims 38 to 44.

46. The plate portion is slidable along the path relative to the backrest portion, and the plate portion is retainable at at least one position within the path, and a movement stroke of the plate portion between two adjacent positions is an integer multiple of a vertical distance between two adjacent second air vents. A child car seat according to any one of claims 38 to 45.

47. The backrest portion includes a front cover and a rear cover, a second ventilation hole is provided in the front cover; the rear cover is attached to a rear portion of the front cover in a longitudinal direction, the rear cover is provided with a third ventilation area, and the third ventilation hole is disposed in the third ventilation area; The third ventilation area is divided into an intermediate area (270B) corresponding to the front cover and peripheral areas (270A) arranged on both sides of the intermediate area (270B), and the distribution density of the third ventilation holes in the intermediate area (270B) is equal to or lower than the distribution density of the third ventilation holes in either of the peripheral areas (270A). The child car seat according to any one of claims 38 to 46.

48. The backrest portion includes a front cover and a rear cover, The second ventilation hole is provided in the front cover, The rear cover is attached to a vertical rear portion of the front cover, the rear cover is provided with a third ventilation area, a third ventilation hole is arranged in the third ventilation area, at least one of the second ventilation hole and the first ventilation hole communicates with the third ventilation hole, and a vertical distance (H3) between adjacent third ventilation holes is an integer multiple of the vertical distance (H1) between adjacent first ventilation holes or an integer multiple of the vertical distance (H2) between adjacent second ventilation holes. A child car seat according to any one of claims 38 to 47.

49. The child car seat includes a seat portion and a buckle storage structure, the backrest portion is connected to the seat portion; The buckle storage structure is disposed in the seat portion and the backrest portion, the buckle storage structure has a first storage space arranged in the seat portion and a second storage space arranged in the backrest portion, One of the first storage space and the second storage space is used to store a male buckle, and the other is used to store a female buckle. A child car seat according to any one of claims 21 to 48.

50. The first storage space is disposed in the center of the seat portion in the horizontal direction and close to the front of the seat portion in the vertical direction, and the first storage space is disposed as a recess recessed downward from the upper surface of the seat portion, and the edge shape of the first storage space corresponds to the female buckle.

50. A child car seat as claimed in claim 49.

51. The second storage space is disposed in the lateral center of the backrest and adjacent to the vertical lower portion of the backrest, and is disposed as a recess recessed from the front surface of the backrest to the rear, and the edge shape of the second storage space corresponds to a male buckle.

51. A child car seat according to claim 49 or 50.

52. The buckle storage structure further includes an adsorption member, The suction member is disposed on the bottom wall of the second storage space and is configured to suction the male buckle to hold the male buckle within the second storage space.

52. The child car seat of claim 51.

53. the back portion includes at least one back locking structure; the at least one backrest locking structure connects the backrest portion to the seat portion and is operable from outside the seat portion to release the connection between the backrest portion and the seat portion; The backrest locking structure includes a locking member and a restoring member, the locking member is movable between a locked position and an unlocked position, and when the locking member is in the locked position, at least a portion of the locking member protrudes from the backrest portion and can be inserted into the seat portion to connect the backrest portion and the seat portion, and when the locking member is in the unlocked position, the locking member retracts into the backrest portion and is separated from the seat portion; The restoring member is configured to bias the locking member to the locked position.

53. A child car seat according to any one of claims 49 to 52.

54. the locking member has a first end, a second end, and an operating portion; the first end faces outward from the backrest portion, and when the locking member is in the locked position, the first end protrudes from the backrest portion; the second end portion is opposed to the first end portion in the longitudinal direction and faces the inside of the backrest portion, and the restoring member abuts against the second end portion; The operating portion is located between the first end and the second end, can be operated from the outside of the backrest, and moves the locking member to the unlocked position by contacting the operating portion with a finger.

54. A child car seat as claimed in claim 53.

55. the backrest portion has at least one joint portion extending longitudinally from a vertical lower end of the backrest portion, and the backrest locking structure is disposed at the joint portion; The seat portion has at least one connecting groove arranged at a rear end in the longitudinal direction of the seat portion, and a locking groove is opened in a front wall of the connecting groove, and the locking member can be inserted into the locking groove to connect the backrest portion to the seat portion.

55. A child car seat according to claim 53 or 54.

56. The backrest is vertically joined to the seat, and the locking member is joined to the locking groove to prevent relative movement between the backrest and the seat in the vertical direction.

56. A child car seat as claimed in claim 55.

57. The child car seat further includes a seat portion and a seat angle adjustment structure, the seat angle adjustment structure includes a support member disposed on a bottom surface of the seat, the support member being movable with respect to the seat portion between an unfolded position and a folded position, and capable of adjusting an angle between the seat portion and a horizontal plane; The movement of the support member between the unfolded position and the folded position is a rotational movement about a horizontal axis, and the unfolded position of the support member is closer to the front in the longitudinal direction of the seat portion than the folded position. A child car seat according to any one of claims 21 to 56.

58. The support member includes two adjustment portions and a connection portion, the two adjustment units are each rotatably connected to the seat unit, The connection portion is connected laterally between two adjustment portions.

58. A child car seat as claimed in claim 57.

59. Each of the adjustment portions has at least one protruding surface and at least one non-protruding surface that are opposed to each other in the vertical direction, When the support member is in the unfolded position, the non-protruding surface abuts against the bottom surface of the seat portion, and the protruding surface protrudes downward from the bottom surface of the seat portion to raise the front end of the seat portion, and when the support member is in the folded position, the support member is folded onto the seat portion.

59. A child car seat as claimed in claim 58.

60. When the support member is in the unfolded position and the folded position, the angle of the seat portion relative to the horizontal plane varies from 0° to 30°.

60. A child car seat according to any one of claims 57 to 59.

Images